M24 SWS
Encyclopedia
The M24 Sniper Weapon System (SWS) is the military and police version of the Remington 700
rifle
, M24 being the model name assigned by the United States Army
after adoption as their standard sniper rifle
in 1988. The M24 is referred to as a "weapons system" because it consists of not only a rifle, but also a detachable telescopic sight
and other accessories.
The M24 was designed to use the "long-action" version of the Remington M700 BDL. This was chosen because the Army wanted the ability to rebarrel the rifle from 7.62 NATO
to the .300 Winchester Magnum
cartridge if needed, which required a long action receiver. Due to using a short action cartridge in a long action receiver and magazine box, rounds must be pushed to the rear of the magazine in order to ensure reliable feeding.
The M24 originally came tapped for the Leupold Ultra M3A 10×42mm fixed-power scope, which came with a circle-shaped mil-dot glass-etched reticle. This was later replaced in 1998 by the cheaper Leupold Mk 4 LR/T M3 10×40mm first focal plane fixed-power scope with a elongated-shaped mil-dot wire reticle.
The first number is the scope's magnification (10) and the second number in millimeters (40mm) is the diameter of the objective lens. A fixed power scope has only one magnification (e.g., 10×) and a variable power scope can be adjusted to focus between a range of magnifications (e.g., 3–9× is adjustable from a minimum power of 3× to a maximum power of 9×). The rifle itself comes with a detachable Harris 6-9" BRM-S swivel bipod unit.
The M24 SWS was to be replaced with the M110 Semi-Automatic Sniper System, a contract awarded to Knight's Armament Company
. However, the Army still continued to acquire M24s from Remington until February 2010 and the M24 is being upgraded to the A2 and M24E1 standard in many cases, and continues to serve. The Army is likely to upgrade its 2,500 M24s to XM2010 Enhanced Sniper Rifle standard.
Sights
: Leupold
Ultra M3A 10×42mm fixed power, or Leupold Mk 4 LR/T M3 10×40mm fixed power scope
. Detachable emergency Redfield-Palma International back-up iron sights
, fitted with tabs that fit into slots machined into the front and back of the barrel.
Barrel
: Made of 416R Stainless Steel. The bore twist is 1-turn-in-11.25 inches [1:285.75 mm] and the rifling is five radial lands and grooves (5-R) with a right-hand (RH) twist. Because of the odd number of lands, none of the lands are 180° apart, i.e. in direct opposition. This results in less bullet deformation, which (at least in theory) produces more consistent point of impact. In 5-R rifling, the "side" of the land is cut at a 65° angle, rather than 90° in conventional rifling. This results in less barrel fouling, and more consistent point of impact, compared to conventional rifling when relatively high numbers of rounds are fired between cleaning, as might be expected in military applications.
Stock
: H-S Precision PST-11 stock. The stock secures the barrel via an aluminum bedding block to keep it rigid. A twin-strut extension that pulls out of the butt is adjustable for a 2-inch [50.8mm] length-of-pull. This is effected by a thick wheel on a central grooved pillar for adjusting the length and a thin locking ring behind it locks the thick wheel in place. The latter is notorious for failing, causing the extension to slide back and forth. Also a styrofoam core designed to reduce the stock's weight would absorb water if it was carried in the rain or soaked in a stream or river, making the weapon heavy and unbalanced.
Accuracy: According to MIL-R-71126(AR), the M24 shall achieve the accuracy results stated below when using M118 Special Ball and fired from a Government approved machine rest. The average mean radius shall be less than or equal to the following values:: 1.3 inches: 1.4 inches: 1.9 inches
Maximum effective range is given as 875 yards (800 meters), but record shots have been made with the M24 at over 1000 metres (1,094 yd). Meanwhile, the standard optical sight has a maximum elevation adjustment of 1000 metres (1,094 yd).
According to JBM Ballistics, using the G7 ballistic coefficient provided by Bryan Litz, the 7.62mm M118 Long Range 7.62×51mm NATO cartridge, when fired at its nominal muzzle velocity of 786 m/s (2,580 ft/s), should have approximately 878 m (960 yd) supersonic range under International Standard Atmosphere
conditions at sea level (air density
ρ = 1.225 kg/m3).
The maximum muzzle velocity standard deviation is set at 15 ft/s (4.57 m/s). Information published on acceptance tests regarding five MK 316 MOD 0 cartridge production lots indicated a sub 2.4 in at 300 yd performance. This equates to a sub 0.8 MOA performance at 274.3 m for the listed ammunition lots.
(7.62×67mm) round. It was not adopted by the US Army due to concerns that operatives in the field would not be able to acquire the special ammo. Also, the available .300 Winchester Magnum ammo that was procured sometimes misfired due to incompletely-burned propellant in the longer cartridge.
has developed an improved version of the M24 rifle, known as the M24A2. The A2 model features a detachable 10-round magazine
, top-mounted and adjustable side-mounted Picatinny rail
s (advertised by Remington as "MARS", or Modular Accessory Rail System), barrel
modifications designed to accommodate a sound suppressor, and an improved H-S Precision PST-25 stock
with adjustable cheek height and length of pull. Existing M24s can also be converted into M24A2s, which replaces the stock and adds the new detachable magazine feed. The conversion requires a re-barreling of the weapon so it can take the OPS silencer.
has also developed the M24A3 SWS, a variant of the M24 chambered for the .338 Lapua Magnum round (8.58×70mm) and feeding from a 5-round detachable box magazine. It comes tapped for the Leupold Mk 4 M1LR/T 8.5–25×50mm Variable Power day scope
. It can also use detachable front and rear Back-Up Iron Sights in an emergency (BUIS units are standard accessories that can be fitted to the Picatinny Rail that runs on the top of the receiver and along the barrel).
has put out a solicitation in May 2009 for reconfiguring M24 Sniper Weapon Systems currently available in Army inventory consisting of a:
The US government purchased MK 248 MOD 1 .300 Winchester Magnum match-grade ammunition in 2009 for use in .300 Winchester Magnum sniper rifles like the U.S. Navy Mk.13 MOD 5 rifle or reconfigured M24 SWSs. This ammunition was developed as a .300 Winchester Magnum Match Product Improvement (PIP) and uses the 14.26 g (220 gr) Sierra MatchKing Hollow Point Boat Tail (HPBT) very-low-drag bullet
fired at a nominal muzzle velocity of 869 m/s (2,850 ft/s) ± 15.2 m/s (50 ft/s). According to the U.S. Navy this ammunition should increase the maximum effective range of .300 Winchester Magnum sniper rifle systems to 1,370 m (1,500 yd), decrease wind defection on bullets in flight and use a reduced muzzle flash propellant that remains temperature stable across an operational temperature range of -32 °C tot 74 °C (-25 °F to 165 °F). According to JBM Ballistics, using the G7 ballistic coefficient provided by Bryan Litz, the Mk 248 MOD 1 .300 Winchester Magnum cartridge, when fired at its nominal muzzle velocity of 869 m/s (2,850 ft/s), should have approximately 1,286 m (1,406 yd) supersonic range under International Standard Atmosphere
conditions at sea level (air density
ρ = 1.225 kg/m3).
. The major configuration change for this system is the conversion from 7.62×51mm NATO to .300 Winchester Magnum ammunition exploiting the M24’s magnum length bolt action to provide additional precision engagement capability and range.
The M24E1/XM2010 is considered a "total conversion upgrade", by which the barrel, stock, magazines, muzzlebrake, suppressor, and even the optics will be changed. Besides the rechambering and rebarreling with a 610 mm (24 in) long, 254 mm (1 in 10 inch) twist rate (5R) hammer-forged barrel the main reconfiguration changes compared to 7.62×51mm NATO chambered M24 rifles are:
According to Remington Arms each rifle is tested to meet (and typically exceeds) the requirement to fire ≤ 1 MOA
(less than a 2-inch shot group at 200 yards) before being released for fielding.
Remington 700
The Model 700 series of firearms are bolt-action rifles manufactured by Remington Arms since 1962. All are based on the same centerfire bolt action. They often come with a 3, 4 or 5-round internal magazine depending on caliber, some of which have a floor-plate for quick-unloading, and some of which...
rifle
Rifle
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile , imparting spin around an axis corresponding to the...
, M24 being the model name assigned by the United States Army
United States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...
after adoption as their standard sniper rifle
Sniper rifle
In military and law enforcement terminology, a sniper rifle is a precision-rifle used to ensure more accurate placement of bullets at longer ranges than other small arms. A typical sniper rifle is built for optimal levels of accuracy, fitted with a telescopic sight and chambered for a military...
in 1988. The M24 is referred to as a "weapons system" because it consists of not only a rifle, but also a detachable telescopic sight
Telescopic sight
A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form of graphic image pattern mounted in an optically appropriate position in their optical system to give an accurate aiming point...
and other accessories.
The M24 was designed to use the "long-action" version of the Remington M700 BDL. This was chosen because the Army wanted the ability to rebarrel the rifle from 7.62 NATO
7.62×51mm NATO
The 7.62×51mm NATO is a rifle cartridge developed in the 1950s as a standard for small arms among NATO countries...
to the .300 Winchester Magnum
.300 Winchester Magnum
The .300 Winchester Magnum is a popular, belted, bottlenecked magnum rifle cartridge that was introduced by Winchester Repeating Arms Company in 1963 as a member of the family of Winchester Magnum cartridges. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard length...
cartridge if needed, which required a long action receiver. Due to using a short action cartridge in a long action receiver and magazine box, rounds must be pushed to the rear of the magazine in order to ensure reliable feeding.
The M24 originally came tapped for the Leupold Ultra M3A 10×42mm fixed-power scope, which came with a circle-shaped mil-dot glass-etched reticle. This was later replaced in 1998 by the cheaper Leupold Mk 4 LR/T M3 10×40mm first focal plane fixed-power scope with a elongated-shaped mil-dot wire reticle.
The first number is the scope's magnification (10) and the second number in millimeters (40mm) is the diameter of the objective lens. A fixed power scope has only one magnification (e.g., 10×) and a variable power scope can be adjusted to focus between a range of magnifications (e.g., 3–9× is adjustable from a minimum power of 3× to a maximum power of 9×). The rifle itself comes with a detachable Harris 6-9" BRM-S swivel bipod unit.
The M24 SWS was to be replaced with the M110 Semi-Automatic Sniper System, a contract awarded to Knight's Armament Company
Knight's Armament Company
Knight's Armament Company is an American firearms and firearms parts manufacturer.It is owned by C. Reed Knight and based in Titusville, Florida. KAC is best known for producing the Rail Interface System and the Rail Adapter System grips for military firearms...
. However, the Army still continued to acquire M24s from Remington until February 2010 and the M24 is being upgraded to the A2 and M24E1 standard in many cases, and continues to serve. The Army is likely to upgrade its 2,500 M24s to XM2010 Enhanced Sniper Rifle standard.
Specifications
Sight (device)
A sight is a device used to assist aligning or aim weapons, surveying instruments, or other items by eye. Sights can be a simple set or system of markers that have to be aligned together as well as aligned with the target...
: Leupold
Leupold & Stevens
Leupold & Stevens, Inc. is a manufacturer of telescopic sights, red dot sights, spotting scopes, and binoculars located in Beaverton, Oregon, United States...
Ultra M3A 10×42mm fixed power, or Leupold Mk 4 LR/T M3 10×40mm fixed power scope
Telescopic sight
A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form of graphic image pattern mounted in an optically appropriate position in their optical system to give an accurate aiming point...
. Detachable emergency Redfield-Palma International back-up iron sights
Iron sights
Iron sights are a system of shaped alignment markers used as a sighting device to assist in the aiming of a device such as a firearm, crossbow, or telescope, and exclude the use of optics as in telescopic sights or reflector sights...
, fitted with tabs that fit into slots machined into the front and back of the barrel.
Barrel
Gun barrel
A gun barrel is the tube, usually metal, through which a controlled explosion or rapid expansion of gases are released in order to propel a projectile out of the end at a high velocity....
: Made of 416R Stainless Steel. The bore twist is 1-turn-in-11.25 inches [1:285.75 mm] and the rifling is five radial lands and grooves (5-R) with a right-hand (RH) twist. Because of the odd number of lands, none of the lands are 180° apart, i.e. in direct opposition. This results in less bullet deformation, which (at least in theory) produces more consistent point of impact. In 5-R rifling, the "side" of the land is cut at a 65° angle, rather than 90° in conventional rifling. This results in less barrel fouling, and more consistent point of impact, compared to conventional rifling when relatively high numbers of rounds are fired between cleaning, as might be expected in military applications.
Stock
Stock (firearm)
A stock, also known as a buttstock or shoulder stock, is a part of a rifle or other firearm, to which the barrel and firing mechanism are attached, that is held against one's shoulder when firing the gun. Stocks are also found on crossbows though a crossbow stock is more properly referred to as a...
: H-S Precision PST-11 stock. The stock secures the barrel via an aluminum bedding block to keep it rigid. A twin-strut extension that pulls out of the butt is adjustable for a 2-inch [50.8mm] length-of-pull. This is effected by a thick wheel on a central grooved pillar for adjusting the length and a thin locking ring behind it locks the thick wheel in place. The latter is notorious for failing, causing the extension to slide back and forth. Also a styrofoam core designed to reduce the stock's weight would absorb water if it was carried in the rain or soaked in a stream or river, making the weapon heavy and unbalanced.
Accuracy: According to MIL-R-71126(AR), the M24 shall achieve the accuracy results stated below when using M118 Special Ball and fired from a Government approved machine rest. The average mean radius shall be less than or equal to the following values:: 1.3 inches: 1.4 inches: 1.9 inches
Maximum effective range is given as 875 yards (800 meters), but record shots have been made with the M24 at over 1000 metres (1,094 yd). Meanwhile, the standard optical sight has a maximum elevation adjustment of 1000 metres (1,094 yd).
Match-Grade Ammunition
- 7.62 × 51mm M118 Match Grade: A 173-grain round.
- 7.62 × 51mm M118LR Long Range: A 175-grain round using Sierra MatchKing Hollow Point Boat Tail projectiles.
- 7.62mm M118 Long Range Performance Data:
- Muzzle velocity (nominal): 2,580 f/s (786 m/s)
- Chamber pressure (typical): 52,000 psi (358.6 MPa)
- Action time (max): 4 ms
- Average horizontal spread at 1,000 meters: 10.3 in (0.984 MOA)
- Average vertical spread at 1,000 meters: 14 in (1.337 MOA)
According to JBM Ballistics, using the G7 ballistic coefficient provided by Bryan Litz, the 7.62mm M118 Long Range 7.62×51mm NATO cartridge, when fired at its nominal muzzle velocity of 786 m/s (2,580 ft/s), should have approximately 878 m (960 yd) supersonic range under International Standard Atmosphere
International Standard Atmosphere
The International Standard Atmosphere is an atmospheric model of how the pressure, temperature, density, and viscosity of the Earth's atmosphere change over a wide range of altitudes. It has been established to provide a common reference for temperature and pressure and consists of tables of...
conditions at sea level (air density
Density of air
The density of air, ρ , is the mass per unit volume of Earth's atmosphere, and is a useful value in aeronautics and other sciences. Air density decreases with increasing altitude, as does air pressure. It also changes with variances in temperature or humidity...
ρ = 1.225 kg/m3).
- 7.62 × 51mm MK 316 MOD 0 Special Ball, Long Range: A 175-grain round consisting of Sierra MatchKing Hollow Point Boat Tail projectiles, Federal Cartridge Company match cartridge cases and Gold Medal Match primers and an undisclosed modified extruded propellant. The 7.62 × 51mm MK 316 MOD 0 Special Ball, Long Range cartridges have an accuracy requirement based around 10-round shotgroups. The Propellant has been verified as IMR 4064 (per NSN 1305-01-567-6944 and Federal Cartridge Company Contract/Order Number N0016408DJN28 and has a charge weight per the specs of 41.745 grains).
- The average extreme spread for 10-round shotgroups shall be less than or equal to the following values:
- 600 yd: 7.0 in (first Production Lot). This equates to a ≤ 1.1 MOA requirement at 548.6 m.
- 300 yd: 3.5 in (after first Production Lot). This equates to a ≤ 1.1 MOA requirement at 274.3 m.
The maximum muzzle velocity standard deviation is set at 15 ft/s (4.57 m/s). Information published on acceptance tests regarding five MK 316 MOD 0 cartridge production lots indicated a sub 2.4 in at 300 yd performance. This equates to a sub 0.8 MOA performance at 274.3 m for the listed ammunition lots.
XM24A1
An experimental variant re-chambered for the .300 Winchester Magnum.300 Winchester Magnum
The .300 Winchester Magnum is a popular, belted, bottlenecked magnum rifle cartridge that was introduced by Winchester Repeating Arms Company in 1963 as a member of the family of Winchester Magnum cartridges. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard length...
(7.62×67mm) round. It was not adopted by the US Army due to concerns that operatives in the field would not be able to acquire the special ammo. Also, the available .300 Winchester Magnum ammo that was procured sometimes misfired due to incompletely-burned propellant in the longer cartridge.
M24A2
RemingtonRemington Arms
Remington Arms Company, Inc. was founded in 1816 by Eliphalet Remington in Ilion, New York, as E. Remington and Sons. It is the oldest company in the United States which still makes its original product, and is the oldest continuously operating manufacturer in North America. It is the only U.S....
has developed an improved version of the M24 rifle, known as the M24A2. The A2 model features a detachable 10-round magazine
Magazine (firearm)
A magazine is an ammunition storage and feeding device within or attached to a repeating firearm. Magazines may be integral to the firearm or removable . The magazine functions by moving the cartridges stored in the magazine into a position where they may be loaded into the chamber by the action...
, top-mounted and adjustable side-mounted Picatinny rail
Picatinny rail
The Picatinny rail or MIL-STD-1913 rail or STANAG 2324 rail or a "Tactical Rail" is a bracket used on some firearms in order to provide a standardized mounting platform. A similar system is the Weaver rail mount.-Description:...
s (advertised by Remington as "MARS", or Modular Accessory Rail System), barrel
Gun barrel
A gun barrel is the tube, usually metal, through which a controlled explosion or rapid expansion of gases are released in order to propel a projectile out of the end at a high velocity....
modifications designed to accommodate a sound suppressor, and an improved H-S Precision PST-25 stock
Stock (firearm)
A stock, also known as a buttstock or shoulder stock, is a part of a rifle or other firearm, to which the barrel and firing mechanism are attached, that is held against one's shoulder when firing the gun. Stocks are also found on crossbows though a crossbow stock is more properly referred to as a...
with adjustable cheek height and length of pull. Existing M24s can also be converted into M24A2s, which replaces the stock and adds the new detachable magazine feed. The conversion requires a re-barreling of the weapon so it can take the OPS silencer.
M24A3
RemingtonRemington Arms
Remington Arms Company, Inc. was founded in 1816 by Eliphalet Remington in Ilion, New York, as E. Remington and Sons. It is the oldest company in the United States which still makes its original product, and is the oldest continuously operating manufacturer in North America. It is the only U.S....
has also developed the M24A3 SWS, a variant of the M24 chambered for the .338 Lapua Magnum round (8.58×70mm) and feeding from a 5-round detachable box magazine. It comes tapped for the Leupold Mk 4 M1LR/T 8.5–25×50mm Variable Power day scope
Telescopic sight
A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form of graphic image pattern mounted in an optically appropriate position in their optical system to give an accurate aiming point...
. It can also use detachable front and rear Back-Up Iron Sights in an emergency (BUIS units are standard accessories that can be fitted to the Picatinny Rail that runs on the top of the receiver and along the barrel).
U.S. Army 2009 solicitation for a M24 reconfiguration
The U.S. ArmyUnited States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...
has put out a solicitation in May 2009 for reconfiguring M24 Sniper Weapon Systems currently available in Army inventory consisting of a:
- Rebarreling/rechambering the SWS's barrel optimized to accommodate Mk 248 (DODIC A191) .300 Winchester Magnum.300 Winchester MagnumThe .300 Winchester Magnum is a popular, belted, bottlenecked magnum rifle cartridge that was introduced by Winchester Repeating Arms Company in 1963 as a member of the family of Winchester Magnum cartridges. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard length...
ammunition. - Replacement of existing weaver rails with a MIL-STD-1913 rail capable of accommodating both a day optic and in-line forward mounted, AN/PVS-26 (NSN 5855-01-538-8121) image intensified (I2) night vision device.
- Reconfiguring the stock with a stock that incorporates a detachable box magazine, adjustable comb and length of pull.
- Addition of a detachable sound suppressor as well as any necessary barrel modifications required for a sound suppressor interface.
- Replacement of the existing day optic sight (DOS) and rings with an Army specified variable power day optic and compatible rings.
The US government purchased MK 248 MOD 1 .300 Winchester Magnum match-grade ammunition in 2009 for use in .300 Winchester Magnum sniper rifles like the U.S. Navy Mk.13 MOD 5 rifle or reconfigured M24 SWSs. This ammunition was developed as a .300 Winchester Magnum Match Product Improvement (PIP) and uses the 14.26 g (220 gr) Sierra MatchKing Hollow Point Boat Tail (HPBT) very-low-drag bullet
Very-low-drag bullet
Very-low-drag bullets are primarily a small arms ballistics development of the 1980s–1990s, driven by shooters' desire for bullets that will give a higher degree of accuracy and kinetic efficiency, especially at extended ranges. To achieve this the projectile must minimize air resistance in flight...
fired at a nominal muzzle velocity of 869 m/s (2,850 ft/s) ± 15.2 m/s (50 ft/s). According to the U.S. Navy this ammunition should increase the maximum effective range of .300 Winchester Magnum sniper rifle systems to 1,370 m (1,500 yd), decrease wind defection on bullets in flight and use a reduced muzzle flash propellant that remains temperature stable across an operational temperature range of -32 °C tot 74 °C (-25 °F to 165 °F). According to JBM Ballistics, using the G7 ballistic coefficient provided by Bryan Litz, the Mk 248 MOD 1 .300 Winchester Magnum cartridge, when fired at its nominal muzzle velocity of 869 m/s (2,850 ft/s), should have approximately 1,286 m (1,406 yd) supersonic range under International Standard Atmosphere
International Standard Atmosphere
The International Standard Atmosphere is an atmospheric model of how the pressure, temperature, density, and viscosity of the Earth's atmosphere change over a wide range of altitudes. It has been established to provide a common reference for temperature and pressure and consists of tables of...
conditions at sea level (air density
Density of air
The density of air, ρ , is the mass per unit volume of Earth's atmosphere, and is a useful value in aeronautics and other sciences. Air density decreases with increasing altitude, as does air pressure. It also changes with variances in temperature or humidity...
ρ = 1.225 kg/m3).
2010 M24E1 Enhanced Sniper Rifle reconfiguration competition
In September 2010 the United States Army’s Joint Munitions and Lethality Contracting Center awarded Remington a Firm Fixed Price Indefinite Delivery/Indefinite Quantity contract (W15QKN-10-R-0403) for the upgrade of up to 3,600 M24 Sniper Weapon Systems currently fielded to the Army pending type classification as the M24E1 Enhanced Sniper Rifle (ESR). Later the Enhanced Sniper Rifle was classified as the XM2010XM2010
The XM2010 Enhanced Sniper Rifle , formerly known as the M24 Reconfigured Sniper Weapon System, is a sniper rifle developed by PEO Soldier for the U.S. Army. It is derived from the M24 Sniper Weapon System and is intended to replace existing M24s. After winning a competitive bidding process,...
. The major configuration change for this system is the conversion from 7.62×51mm NATO to .300 Winchester Magnum ammunition exploiting the M24’s magnum length bolt action to provide additional precision engagement capability and range.
The M24E1/XM2010 is considered a "total conversion upgrade", by which the barrel, stock, magazines, muzzlebrake, suppressor, and even the optics will be changed. Besides the rechambering and rebarreling with a 610 mm (24 in) long, 254 mm (1 in 10 inch) twist rate (5R) hammer-forged barrel the main reconfiguration changes compared to 7.62×51mm NATO chambered M24 rifles are:
- Fitting a new chassis (stock) assembly, which maximizes the amount of physical adjustments for the sniper to provide a better user customized fit. The chassis has a folding buttstock that shortens the system for easier transport and better concealment during movement and accommodates the mounting of accessories via removable Mil Std 1913 Picatinny RailPicatinny railThe Picatinny rail or MIL-STD-1913 rail or STANAG 2324 rail or a "Tactical Rail" is a bracket used on some firearms in order to provide a standardized mounting platform. A similar system is the Weaver rail mount.-Description:...
s. - Fitting a 5-round detachable box magazine.
- Fitting a quick-attachable/detachable Advanced Armament Corp. sound suppressor with muzzle brakeMuzzle brakeMuzzle brakes and recoil compensators are devices that are fitted to the muzzle of a firearm or cannon to redirect propellant gases with the effect of countering both recoil of the gun and unwanted rising of the barrel during rapid fire...
. - Fitting a Leupold Mark 4 6.5–20×50mm ER/T M5 Front Focal variable power telescopic sightTelescopic sightA telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form of graphic image pattern mounted in an optically appropriate position in their optical system to give an accurate aiming point...
featuring a 34 mm tube diameter, first focal plane Horus Vision grid system range estimation reticle and Bullet Drop Compensation. - Applying advanced corrosion resistant coatings throughout the system.
According to Remington Arms each rifle is tested to meet (and typically exceeds) the requirement to fire ≤ 1 MOA
Minute of Angle
Minute of angle is the measurement of a ballistic round's deviation from its initial heading due to gravity and/or the effect of air resistance on velocity. Informally known as a "Bullet's Trajectory" or "the rainbow effect". Long range weapons must account for this effect because a fired round...
(less than a 2-inch shot group at 200 yards) before being released for fielding.
Users
- Afghan National Army: Bercsény László Különleges Műveleti Zászlóalj.: Israel Defense ForcesIsrael Defense ForcesThe Israel Defense Forces , commonly known in Israel by the Hebrew acronym Tzahal , are the military forces of the State of Israel. They consist of the ground forces, air force and navy. It is the sole military wing of the Israeli security forces, and has no civilian jurisdiction within Israel...
.: Used by paratroopers of the 1st Airborne Brigade1st Airborne Brigade (Japan)The , also known as the Narashino Airborne Brigade , is stationed in the Narashino Japan Ground Self-Defense Forces Base in Funabashi, Chiba Prefecture. It is part of the Eastern Army in the Japan Ground Self-Defense Force...
.: Used by the US Army. Also used by various police SWATSWATA SWAT team is an elite tactical unit in various national law enforcement departments. They are trained to perform high-risk operations that fall outside of the abilities of regular officers...
teams.
See also
- List of individual weapons of the U.S. Armed Forces
- List of crew-served weapons of the U.S. Armed Forces