M24 Sniper Weapon System

Last updated
Rifle, Caliber 7.62 mm, Sniper Weapon System, M24
The M24 rifle
Type Sniper rifle
Place of originUnited States
Service history
In service1988–present
Used bySee Users
Wars Soviet–Afghan War
Salvadoran Civil War
Gulf War
War in Afghanistan
Iraq War
Syrian Civil War [1]
Iraqi Civil War (2014–2017) [2]
Production history
Manufacturer Remington Arms
Produced1988 – c. 2010
No. built15,000
VariantsM24A2, M24A3, M24E1
Mass5.4 kg (11.88 lbs) empty, w/. sling, without scope (M24)
7.3 kg (16 lbs) max weight with day optical sight, sling swivels, carrying strap, fully loaded magazine [3]
5.6 kg (12.32 lbs) empty, w/sling, without scope (M24A3).
Length1,092 mm (43 in) (M24A1, M24A2);
(46.5 in) (M24A3)
Barrel  length610 mm (24 in)(M24A1, M24A2);
685.8 mm (27 in) (M24A3)

Cartridge 7.62×51mm NATO (M24, M24A2) [4] .338 Lapua Magnum (M24A3) [4]
Action Bolt-action
Rate of fire 20 rpm
Muzzle velocity 2,580 ft/s (790 m/s) w/M118LR Sniper load (175 gr.)
Effective firing range
  • 800 metres (875 yd) (7.62×51mm)
  • 1,500 metres (1,640 yd) (.338 Lapua Magnum)
Feed system5-round internal magazine (M24),
5-round detachable box magazine (M24A2, M24A3)
Sights Telescopic; detachable backup iron sights

The M24 Sniper Weapon System (SWS) is the military and police version of the Remington Model 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 "weapon system" because it consists of not only a rifle, but also a detachable telescopic sight and other accessories.

Remington Model 700 rifle

The Remington Model 700 is a series of bolt-action centerfire rifles manufactured by Remington Arms since 1962. It is a development of the Remington 721 and 722 series of rifles, which were introduced in 1948. The M24 and M40 military sniper rifles used by the US Army and USMC are both based on the Model 700 design.

Rifle Common long range firearm

A rifle is a portable, long-barrelled firearm designed for accurate long-range shooting, to be held with both hands and braced against the shoulder for stability during firing, and with a barrel that has a helical pattern of grooves ("rifling") cut into the bore wall. The term was originally rifled gun, with the word "rifle" referring to the machining process of creating groovings with cutting tools, and is now used for any long handheld device designed for well-aimed discharge activated by a trigger, such as the personnel halting and stimulation response rifle. Rifles are used extensively in warfare, law enforcement, hunting and shooting sports.

United States Army Land warfare branch of the United States Armed Forces

The United States Army (USA) is the land warfare service branch of the United States Armed Forces. It is one of the seven uniformed services of the United States, and is designated as the Army of the United States in the United States Constitution. As the oldest and most senior branch of the U.S. military in order of precedence, the modern U.S. Army has its roots in the Continental Army, which was formed to fight the American Revolutionary War (1775–1783)—before the United States of America was established as a country. After the Revolutionary War, the Congress of the Confederation created the United States Army on 3 June 1784 to replace the disbanded Continental Army. The United States Army considers itself descended from the Continental Army, and dates its institutional inception from the origin of that armed force in 1775.


The M24 SWS has the "long action" bolt version of the Remington 700 receiver but is chambered for the 7.62×51mm NATO "short action" cartridge that has an overall length of 2.750 inches (69.85 mm). The "long action" allows the rifle to be re-configured for dimensionally larger cartridges up to 3.340 inches (84.84 mm) in overall length.

7.62×51mm NATO rifle cartridge

The 7.62×51mm NATO is a rimless bottlenecked rifle cartridge developed in the 1950s as a standard for small arms among NATO countries. It should not be confused with the similarly named Russian 7.62×54mmR cartridge, a slightly longer, rimmed cartridge.

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 Leupold Mk 4 LR/T M1 10×40mm fixed-power scope with an elongated-shaped mil-dot wire reticle. [5]

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 9–13" 1A2-LM or Harris 9–13" 1A2-L 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 upgraded to the A2 and M24E1 standard in many cases, continuing to serve. [6] The Army chose to upgrade all its M24 rifles in the arsenals to the M2010 Enhanced Sniper Rifle, with the final M24 being converted in April 2014. [7]

M110 Semi-Automatic Sniper System

The M110 Semi Automatic Sniper System is an American semi-automatic sniper rifle/designated marksman rifle that is chambered for the 7.62×51mm NATO round, developed by U.S. firearm manufacturer Knight's Armament Company. The SDMR is based on the Heckler and Koch G28E-110 Compact Semi-Automatic Sniper System, or CSASS. The M110 is to be replaced by the lighter and more compact M110A1 CSASS.

Knights Armament Company company

Knight's Armament Company (KAC) is an American firearms and firearms parts manufacturer, best known for producing the Rail Interface System (RIS) and the Rail Adapter System (RAS) grips for firearms use. They currently produce a variety of firearms, specifically AR-15 rifles. One of their best known rifles is the SR-25 semi-automatic special application sniper rifle.

M2010 Enhanced Sniper Rifle sniper rifle

The M2010 Enhanced Sniper Rifle (ESR), formerly known as the XM2010 and M24 Reconfigured Sniper Weapon System, is a sniper rifle developed by PEO Soldier for the United States Army. It is derived from the M24 Sniper Weapon System and replaced the existing M24s. After winning a competitive bidding process, Remington was awarded the production contract for up to 3,600 weapons. The Army had anticipated fielding upgraded weapons to deployed U.S. Army Snipers near the end of December 2010, but later expected fielding would happen in January 2011.


U.S. Army sniper team with the M24 SWS. 061019-A-7603F-151.jpg
U.S. Army sniper team with the M24 SWS.

Scope: 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, they are attached to iron sight bases that are screwed into drilled and tapped holes machined into the front of the barrel and back on the left side of the receiver. In 2001 when Remington had the second contract to the U.S. military, minor changes were done to the M24. These changes included two piece Leupold Mark 4 scope ring bases instead of the one piece on the first series rifles, and a switch from Redfield-Palma International iron sights to another manufacturer OK Weber. Redfield was out of business by then, necessitating a change.

Telescopic sight Sighting device for firearms

A telescopic sight, commonly called a scope, is an optical sighting device that is based on a 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. Telescopic sights are used with all types of systems that require accurate aiming but are most commonly found on firearms, particularly rifles. Other types of sights are iron sights, reflector (reflex) sights, and laser sights. The optical components may be combined with optoelectronics to form a night scope.

Leupold & Stevens, Inc. is an American manufacturer of telescopic sights, red dot sights, spotting scopes, and binoculars located in Beaverton, Oregon, United States. The company, started in 1907, is family owned and has been run by five generations of the family.

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 reflector (reflex) sights, holographic sights, and telescopic sights.

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-024, the model with the fixed cheek piece, adjustable LOP and hinged floorplate. The stock secures the action via an aluminum bedding block to keep it rigid. The barrel is free floating. A twin-strut extension that pulls out of the butt allows a 2-inch [50.8mm] adjustment to length-of-pull, as well as allowing for the weapon to fit inside the M-1950 Weapon Container for Airborne Operations. 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 stock is primarily made from a polymer foam reinforced with fiberglass, carbon fiber, and Kevlar to reduce weight and then painted with a heavy duty polane paint. They were rigorously tested before being approved by Remington and the military.

A U.S. Soldier training with a M24 Army.mil-2007-04-23-093320 XM110.jpg
A U.S. Soldier training with a M24

Accuracy: According to MIL-R-71126(AR), 3.15.7 Targeting and Accuracy, The rifle shall achieve the dispersion set forth below when fired from a Government approved machine rest. The average mean radius shall be less than or equal to the values stated below. The minimum rate of fire for conducting this test shall be three rounds per minute. [3]

Range / Average Mean Radius (AMR) — Mean Radius (MR) expresses the average distance of all the shots from the center of the shot group. AMR averages the MR of several shot groups.

The radial distance from the calculated center of impact of the first target compared to the calculated center of impacts of the subsequent targets shall be less or equal to 1.086 MOA (3.3 inches @ 300 yards, 2.2 inches @ 200 yards, 2.4 inches @ 200 meters) on an average basis.

The actual rifle requirements for accuracy were .35 MOA from a machine rest and according to Major John Mende (ret.) this accuracy had to be maintained to 10,000 rounds. He stated, "Interesting side note was there was a 10,000 round requirement for the barrel to maintain the original accuracy. In fact after some 10,000 round tests we discovered the accuracy improved. A few barrels were tested past 20,000 and accuracy never went below the original accuracy requirement." [8]

Maximum effective range is given as 800 meters (875 yd), but record shots have been made with the M24 at over 1,000 meters (1,094 yd). Meanwhile, the standard optical sight has a maximum elevation adjustment of 1,000 meters (1,094 yd).

Match-grade ammunition

M24 sniper rifle, equipped with an AN/PVS-10 Sniper Night Sight (SNS). 1st Battalion, 24th Infantry snipers scanning for activity from a Mosul police station DA-SD-06-03422.jpg
M24 sniper rifle, equipped with an AN/PVS-10 Sniper Night Sight (SNS).

According to JBM Ballistics, [11] 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 metres (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. [12]

This IMI ammunition has an average muzzle velocity of 770 m/s (2,526 ft/s) from a 56 cm (22 in) long barrel and shoots groups of ≤ 25.4 cm (10 in) extreme spread at a distance of 550 m (600 yd), an accuracy that equals ≤ 1.6 MOA. [13] [14]

M24 SWS system components (U.S. Army photo). M24 components.jpg
M24 SWS system components (U.S. Army photo).

M24 variants


An experimental variant re-chambered for the .300 Winchester Magnum (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.


Remington has developed an improved version of the M24 rifle, known as the M24A2. The A2 model features a detachable 5-round magazine, top-mounted and adjustable side-mounted Picatinny rails (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-026 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.


Remington 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. [15] 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).

U.S. Army 2009 solicitation for an M24 reconfiguration

The U.S. Army put out a solicitation in May 2009 for reconfiguring M24 Sniper Weapon Systems currently available in Army inventory consisting of a: [16]

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 to 74 °C (-25 °F to 165 °F). [17] [18] [19] According to JBM Ballistics, [11] 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).

2010 M24E1 Enhanced Sniper Rifle reconfiguration competition

M24E1/XM2010 reconfigured Sniper Weapon System chambered in .300 Winchester Magnum. XM2010 November 2010.jpg
M24E1/XM2010 reconfigured Sniper Weapon System chambered in .300 Winchester Magnum.

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). [20] Later the Enhanced Sniper Rifle was classified as the XM2010. 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 and range. [21] [22]

The M24E1/XM2010 is considered a "total conversion upgrade", by which the barrel, stock, magazines, muzzle brake, 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: [23]

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. [21]

Based on the results and feedback from troops, the U.S. Army decided in May 2011 to replace its entire fleet of M24s, ordering a total of 2,558 M2010 Enhanced Sniper Rifles. By September 2012, the Army had fielded more than 1,400 systems as part of an urgent material release. The M2010 achieved Type Classification-Standard in July 2013 and Full Materiel Release in September 2013, supporting procurement for the balance of the Army requirement. On 25 April 2014, the 2,558th M2010 Enhanced Sniper Rifle was completed. [26] [27] [7]

Differences between M24 and M40

The U.S. Marine Corps also uses the Remington 700/40x action as the basis for its M40 Sniper Weapon System. [28] The primary difference between the U.S. Army and the U.S. Marine Corps rifles is that while the U.S. Marine Corps M40 variants use the short-action version of the Remington 700/40x (which is designed for shorter cartridges such as the .308 Winchester/7.62×51 mm NATO), the U.S. Army M24 uses the Remington 700 Long Action. [28] Despite the fact that the M24 comes fitted with a 7.62×51mm NATO barrel upon issue, retaining the longer action allows them to reconfigure the rifle in dimensionally larger cartridge chamberings if necessary (which has been the case during the longer engagement distances during Operation Enduring Freedom). Long actions also increase reliability reduce jamming by reducing the angle of cartridges leaving the magazine and permit long, low-drag heavy-for-caliber bullets to be loaded in short-action cartridges that otherwise would not fit in short-action cartridges, magazines and receivers.

The U.S. Army reconfigured their M24 rifles to M2010 Enhanced Sniper Rifles rechambering the original M24 rifles to .300 Winchester Magnum. The USMC M40A3 uses a 25 inches (635 mm) Schneider barrel and the U.S. Army M24 used a 24 inches (610 mm) Rock Creek 5R barrel.


IDF M24 sniper rifle, colored in camouflage scheme. M24-Israel63pic 0017a.jpg
IDF M24 sniper rifle, colored in camouflage scheme.

See also

Related Research Articles

Sniper rifle precision-rifle

A sniper rifle is a high-precision rifle designed for sniper missions. It serves to fulfill the tactical need for long range surveillance, effective anti-personnel and anti-materiel operations with a high hit probability, and can be used by military, law enforcement and civilian militias. The modern sniper rifle is a portable shoulder-fired weapon system with a choice between bolt-action or semi-automatic action, fitted with a telescopic sight for extreme accuracy and chambered for a high-ballistic performance centerfire cartridge.

Designated marksman

The designated marksman (DM), squad advanced marksman (AD), or squad designated marksman (SDM) is a military marksman role in an infantry squad. The term sniper was used in Soviet doctrine although the soldiers using the Dragunov SVD were the first to use a specifically designed designated marksman's rifle. The analogous role in the Israeli army is sharpshooter.

.338 Lapua Magnum cartridge (rifle ammunition)

The .338 Lapua Magnum is a rimless, bottlenecked, centerfire rifle cartridge. It was developed during the 1980s as a high-powered, long-range cartridge for military snipers. It was used in the Afghanistan War and the Iraq War. As a result of this, it became more widely available. The loaded cartridge is 14.93 mm (0.588 in) in diameter (rim) and 93.5 mm (3.68 in) long. It can penetrate better-than-standard military body armor at ranges up to 1,000 metres (1,090 yd) and has a maximum effective range of about 1,750 metres (1,910 yd) with C.I.P. conform ammunition at sea level conditions. Muzzle velocity is dependent on barrel length, seating depth, and powder charge, and varies from 880 to 915 m/s for commercial loads with 16.2-gram (250 gr) bullets, which corresponds to about 6,525 J (4,813 ft⋅lbf) of muzzle energy.

The Accuracy International AWM is a bolt-action sniper rifle manufactured by Accuracy International designed for magnum rifle cartridges. The Accuracy International AWM is also unofficially known as the AWSM, which typically denotes AWM rifles chambered in .338 Lapua Magnum.

The Accuracy International Arctic Warfare rifle is a bolt-action sniper rifle designed and manufactured by the British company Accuracy International. It has proved popular as a civilian, police, and military rifle since its introduction in the 1980s. The rifles have some features that improve performance in very cold conditions without impairing operation in less extreme conditions.

The M40 rifle is a bolt-action sniper rifle used by the United States Marine Corps. It has had four variants: the M40, M40A1, M40A3, and M40A5. The M40 was introduced in 1966. The changeover to the A1 model was completed in the 1970s, the A3 in the 2000s, and the A5 in 2009.

The Winchester Model 70 is a bolt-action sporting rifle. It has an iconic place in American sporting culture and has been held in high regard by shooters since it was introduced in 1936, earning the moniker "The Rifleman's Rifle". The action has some design similarities to Mauser designs and it is a development of the earlier Winchester Model 54.

The CheyTac Intervention is an American bolt-action sniper rifle manufactured by CheyTac LLC, which can also be classified as an anti-materiel rifle. It is fed by a 7-round detachable single-stack magazine. It is specifically chambered in either .408 Chey Tac or .375 Chey Tac ammunition. CheyTac LLC states that the system is capable of delivering sub-MOA accuracy at ranges of up to 2,500 yd (2,286 m), one of the longest ranges of all modern-day sniper rifles. It is based on the EDM Arms Windrunner.

Bor rifle sniper rifle

The Bor is a Polish bolt-action 7.62×51mm NATO and .338 Lapua Magnum caliber sniper rifle. The weapon received the code name Alex during development, after the name of the lead designer Aleksander Leżucha, creator of the 12.7×99mm NATO Wilk anti-materiel rifle. After the development phase, the rifle received the military designation 'Bor'.

.300 Winchester Magnum rifle cartridge

The .300 Winchester Magnum (7.62×67mm) is a belted, bottlenecked magnum rifle cartridge that was introduced by Winchester Repeating Arms Company in 1963. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard rifle action. It is based on the .375 H&H Magnum, which has been blown out, shortened, and necked down to accept a .30 caliber (7.62 mm) bullet.

The Sako TRG is a bolt-action sniper rifle line designed and manufactured by the Finnish firearms manufacturer, SAKO of Riihimäki. The TRG-21 and TRG-22 are designed to fire standard .308 Winchester /7.62×51mm NATO sized cartridges, while the TRG-41 and TRG-42 are designed to fire more powerful and dimensionally larger .300 Winchester Magnum (7.62×67mm) magnum and .338 Lapua Magnum (8.6×70mm) super magnum cartridges. They are available with olive drab green, desert tan/coyote brown, dark earth or black stocks, and are also available with a folding stock.

6.5mm Creedmoor Centerfire rifle cartridge

The 6.5mm Creedmoor, designated 6.5 Creedmoor by SAAMI, 6,5 Creedmoor by the C.I.P. or 6.5 CM or 6.5 CRDMR for short, is a centerfire rifle cartridge introduced by Hornady in 2007 as a modification of the 6.5 Carcano and the .30 TC, and is based on the .308 Winchester. It was developed in partnership by Hornady Senior Ballistics Scientist Dave Emary and Dennis DeMille, VP of product development for Creedmoor Sports, hence the name. The cartridge was designed specifically for long-range target shooting, although it has success in game hunting. Bullet-for-bullet, the 6.5mm Creedmoor achieves a slower muzzle velocity than longer cartridges such as the 6.5-284 Norma or magnum cartridges such as the 6.5mm Remington Magnum. However, due to its overall length of 2.825 inches (71.8 mm), it is capable of chambering in short-action rifles.

The CZ-550 is a bolt-action hunting rifle series manufactured by Česká zbrojovka Uherský Brod. The CZ 550 series is available with a medium or magnum sized action. The CZ 550 rifle resembles the Mauser 98 rifle series, though it is not an exact copy.

The C14 Timberwolf MRSWS is a bolt-action sniper rifle built by the Canadian arms company PGW Defence Technologies Inc. In 2005 they won the contract to supply the Canadian Forces Land Command with the C14 Timberwolf MRSWS for $4.5 million.

.338 Norma Magnum cartridge

The .338 Norma Magnum is a cartridge first introduced in 2008 and came into production in 2009, designed by Norma of Sweden.

The Haskins Rifle, also known as the RAI 300(Research Armament Model 300) or Haskins M500 rifle was a bolt-action weapon designed by Jerry Haskins between 1981 and 1982 for snipers in the US Military. Unlike most military sniper rifles, the Haskins was purpose-built for the military, not reworked from an existing civilian firearm - another such sniper rifle was the Soviet SVD.

The Modular Sniper Rifle, or MSR, is a bolt-action sniper rifle developed and produced by Remington Arms for the United States Army. It was introduced in 2009, and was designed to meet specific United States Army and USSOCOM Precision Sniper Rifle requirements. The MSR won the PSR competition, and is called the Remington Mk 21 Precision Sniper Rifle in U.S. military service.


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