History
The Remington Defense "Modular Sniper Rifle" or "MSR" was developed in 2009 as part of the "Precision Sniper Rifle" (PSR) for the new Armor-piercing Special Operations Command (SOCOM) Infantry Sniper Rifle .Contest. Contested to replace all operational SOCOM Magnum shooting bolt action sniper weapon systems, the Remington MSR was declared in March 2013 to outperform the competing Finnish model Sako TRG M10.
This paves the way for an official launch of the service by the end of the year.
In US Army/SOCOM inventory, the rifle is referred to as the Mk 21 "Precision Sniper Rifle".
The MSR has all the elements of a modern sniper platform, including Picatinny rail mounts (top, side, bottom) to accommodate a large number of tactical accessories. It features perforated handguards and padded/adjustable cheeks and shoulders, as well as a sturdy/adjustable trigger assembly, etched pistol grip, removable bipod mount and muzzle brake/quick release the muffler bracket.
The shoulder rest swivels to fold the receiver for marching, keeping the overall length of the weapon to a minimum.
The MSR uses a proven hand-operated bolt system (with a twist-lock bolt mechanism) that allows the user to manage the bolt lever grip on the left side of the rifle. This cyclic action is used to eject/remove the spent case from the chamber while inserting a new prepared magazine from the detachable box magazine inserted into the magazine well.
This rifle accepts multiple proven rifle cartridge types, including the . 338 Lapua Magnum,. 338 Norma Magnum, . 300 Winchester Magnum and 7. 62x51mm NATO. They are fed from spring loaded 5, 7 or 10 round magazines (the amount of ammo depends on the cartridge used and the chamber selected). Depending on the cartridge used, the muzzle velocity can reach 3,300 feet per second and the effective range can be up to 1,640 yards.
Aiming can be accomplished with a variety of supported scopes mounted above the receiver, including the Leupold & Stevens Mark 4 and Schmidt & Bender 5-25x56 series.
The Remington MSR is relatively lightweight, low maintenance and highly accurate, and represents the future of SOCOM sniping on the modern battlefield.
Specification
Roles
- Manual Repeat Shot
- remote precision
Dimensions
1,200 mm (47.24 in)
690 mm (27.17 in)
7.00 kg
Various supported optics.
Performance
Manual repeat system
3,000 ft/s (914 m/s)
12 rounds per minute
4,920 ft (1,500 m; 1,640 yd)
Changes
MSR ("Modular Sniper Rifle") - the name of the basic series.
Mk 21 Precision Sniper Rifle (PSR) - US Army/USSOCOM designation for MSR.



