Remington MSR

The Modular Sniper Rifle, or MSR, is a bolt-action sniper rifle recently 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.

Remington MSR
Class Manportable
Type Rifles
Manufacturer Remington Arms
Origin United States of America
Country Name Origin Year
United States of America 2013
Country Name Operational Year Retirement Year
Colombia View
United States of America 2013 View
ManufacturerName Production From Production To Quantity
Remington Arms 2009 5150 View

On 7 March 2013, MSR was declared the winner of the Precision Sniper Rifle competition. Remington announced that the MSR had won on March 8, and it was publicly confirmed on March 9. This was followed by a $79.7 million contract for 5,150 rifles with suppressors, along with 4,696,800 rounds of ammunition to be supplied over the next ten years. The contract was awarded on 12 September 2013. Remington Defense produces the sniper rifles and utilizes two other companies for other system components, with Barnes Bullets for ammunition and Advanced Armament Corporation for muzzle brakes and suppressors; all three companies are subsidiaries of Freedom Group Incorporated.

By 2015, the U.S. Army was considering the PSR to replace both the .300 Winchester Magnum M2010 Enhanced Sniper Rifle and the .50 BMG M107 Long Range Sniper Rifle for regular snipers, although no decision has been made. The U.S. Marine Corps was also considering the Mk 21 to replace their M40A5 sniper rifle, but is unlikely to adopt the Mk 21 due to the higher cost of the system, particularly the ammunition, as compared to the 7.62mm NATO M40A5.

Type Sniper rifle
Place of origin United States
Service history
In service 2013-present
Used by United States
Wars None
Production history
Manufacturer Remington Arms
Unit cost $15,000
Produced 2009–present
Number built 5,150 planned
Specifications (22" barrel)
Weight 13 lb (5.9 kg) (base rifle)
17 lb (7.7 kg) (complete)
Length 36 in (91 cm) (stock folded)
46 in (120 cm) (stock extended)
Barrel length 20 in (51 cm)
22 in (56 cm)
24 in (61 cm)
27 in (69 cm)
Cartridge .338 Lapua Magnum
.338 Norma Magnum
.300 Winchester Magnum
7.62×51mm NATO
Action Bolt-action
Muzzle velocity 1,002 m/s (3,290 ft/s) (.338LM)
938 m/s (3,080 ft/s) (.300WM)
890 m/s (2,900 ft/s) (.338NM)
841 m/s (2,760 ft/s) (7.62 NATO)
Effective firing range 1,500 m (1,640 yd) (varies on cartridge)
Feed system Detachable box magazine:
5 or 10 rounds (.338 Norma/Lapua, 7.62 NATO)
7 rounds (.300 Win Mag)
Sights Schmidt & Bender 5–25×56 PMII
Leupold & Stevens Mark 4

End notes