| United States Marine Corps Designated Marksman Rifle | |
|---|---|
 7.62×51mm NATO Designated marksman rifle | |
| Type | Designated marksman rifle |
| Place of origin | United States |
| Service history | |
| In service | 2001–2014 |
| Wars | War in Afghanistan (2001–2021) War in Iraq |
| Specifications | |
| Mass | 4.5–5.0 kg (9.9–11.0 lb) |
| Length | 1,118 mm (44.0 in) |
| Barrel length | 559 mm (22.0 in) |
| Cartridge | 7.62×51mm NATO |
| Action | Gas-operated,rotating bolt |
| Rate of fire | Semi-automatic |
| Muzzle velocity | 2,580 ft/s (790 m/s) with M118LR 175 grain ammunition[1]2,750 ft/s (840 m/s) with M80 147 grain ammunition[2] |
| Effective firing range | 600–800 m (660–870 yd) |
| Feed system | 10 or 20-round detachable box magazine |
TheUnited States Marine Corps Designated Marksman Rifle (DMR,NSN 1005-01-458-6235; more formally theUnited States Rifle, Caliber 7.62 mm, M14, DMR) is asemi-automatic,gas-operatedrifle chambered for the7.62×51mm NATOcartridge. It is a modified version of theM14 rifle formerly used by theUnited States Marine Corps. The USMC Precision Weapons Section atMarine Corps Base Quantico built all DMRs.[3]
The Marine Corps replaced the DMR with theM39 Enhanced Marksman Rifle on a one-for-one basis.[4]
In 1989, the USMC began a program to upgrade M14s not decommissioned into DMRs by designing them with fiberglass stocks and new barrels.[5] This was done by the Precision Weapons Section.
The DMR was issued with match-grade M118LR 175-grain Long Range ammunition.[6] It can have various scopes attached on the upper receiver, including the AN/PVS-4 Starlight scope,[7] via picatinny rail.[8]
The DMR can fire precisely up to 1,000 yards if M118LR special ball ammo is used.[8]
The "basic" DMR (i.e., without secondary sight,magazine, sling, basic issue items, cleaning gear,suppressor andbipod) weighs 11 pounds (5.0 kg) or less.[9]
The DMR design facilitates repairing or replacing of the sight mount,barrel,bolt, and other key assemblies at the third echelon maintenance level.
There are several notable differences between the basic M14 and the DMR.
The DMR was previously used by Marine Corps FAST Companies[12] and by the 4th Marine Expeditionary Brigade (Anti-Terrorism).Explosive Ordnance Disposal Teams use them to safely shoot at mines or other types of explosives that cannot be disarmed from a safe distance.[10]
The DMR was previously used by USMC Scout Sniper Teams.[13]
