M14 DMR Rifle

Overview:

The United States Marine Corps Designated Marksman Rifle (DMR, NSN 1005-01-458-6235; more formally the United States Rifle, 7.62 mm, M14, DMR) is a semi-automatic, gas-operated rifle chambered for the 7.62x51mm NATO cartridge. It is a modified and accurized version of the M14 rifle built and utilized solely by the United States Marine Corps (USMC). The rifle is currently issued with match-grade M118LR 175-grain Long Range ammunition. The "basic" DMR (i.e., without secondary sight, magazine, sling, basic issue items, cleaning gear, suppressor and bipod) weighs 11 pounds (5 kg) or less. The DMR design allows the sight mount, barrel, bolt, and other key assemblies to be repaired or replaced at the third echelon maintenance level. All DMRs are built at the USMC Precision Weapons Shop at Quantico, Virginia. The Marine Corps' inventories are being replaced by the M39 Enhanced Marksman Rifle on a one-for-one basis.

Specifications:

Type

• Sniper rifle/designated marksman rifle.

Place of Origin

• United States.

Barrel

• A 22-inch (560 mm) stainless steel, match grade barrel by either Krieger Barrels, Inc. or Rock Creek Barrels, Inc. (Mike Rock Barrels).

Stock

• McMillan Tactical M2A fiberglass stock. This particular stock features a pistol grip and a buttstock with adjustable saddle cheekpiece.

Optics

• An over-action MIL-STD-1913 Picatinny rail sourced from either GG&G Armament Arizona or Smith Enterprise, Inc. allows for the use of any optic compatible with the rail; this includes a rather large variety of military scopes and imaging devices. The most common scope used on the USMC DMR are TS-30.xx series Leupold Mark 4 day scopes, AN/PVS-10 or AN/PVS-17 night vision scopes, and Unertl M40 10× fixed power scopes.

Muzzle Device

• Most USMC DMRs utilize the traditional M14 muzzle device, although since deployment in 2001, some DMRs are now equipped with the OPS, Inc. 2-port muzzle brake, which is threaded and collared to accept an OPS-Inc. 12th Model sound suppressor.

Bipod

• A Harris S-L bipod is used on the USMC DMR.

Weight

• 4.5–5.0 kg (10–11 lb).

Length

• 1,118 mm (44 in).

Barrel Length

• 559 mm (22 in).

Cartridge

• 7.62x51mm NATO.

Action

• Gas-operated.
• Rotating bolt.

Rate of Fire

• Semi-automatic.

Muzzle Velocity

• 865 m/s (2,837 ft/s).

Effective Range

• 600–800 m (650–875 yd).

Feed System

• 5- 10- or 20-round detachable box magazine.