Mk 14 Enhanced Battle Rifle

The Mk 14 Enhanced Battle Rifle (EBR) is an American selective fire military designated marksman rifle chambered for the 7.62×51mm NATO cartridge. It is a variant of the M14 battle rifle and was originally built for use with units of the United States Special Operations Command, such as the United States Navy SEALs, Delta Force, and task specific ODA units.

The EBRs are made with the intention of carrying out both designated marksman and CQB roles in combat. Since 2010, the U.S. Army has made available two M14 EBR-RI rifles per infantry platoon for units deploying to Afghanistan. The M14 EBR-RI has a standard weight 22.0" barrel and lugged GI flash hider; it is not to be confused with the Mk 14 Mod 0 or Mod 1.

Mk 14 Enhanced Battle Rifle
Class Manportable
Type Rifles
Manufacturer Naval Surface Warfare Center Crane Division
Origin United States of America
Country Name Origin Year
United States of America 2004
Country Name Operational Year Retirement Year
Australia View
Iraq View
Philippines View
United States of America 2004 View
Taiwan View
ManufacturerName Production From Production To Quantity
Naval Surface Warfare Center Crane Division View

The creation of the Mk 14 Mod 0 Enhanced Battle Rifle (EBR) began in 2000 after a request by United States Navy SEALs for a more compact M14 battle rifle. In 2001, Mike Rock Rifle Barrels, Inc. was the only rifle barrel maker asked by United States Special Operations Command to participate in a SOPMOD conference to create what would be the Mk 14 Mod 0 EBR, with details that include a collapsible stock that was requested for the new rifle and with aluminum body with telescopic rails.  Mike Rock collaborated with engineer Jim Ribordy to make the new rifle. Tests showed that their rifle was effective, but had excessive noise problems.

In 2003, Ron Smith and Smith Enterprise, Inc. created its own version of the M14 Enhanced Battle Rifle (MK14 SEI), which used a medium heavy weight 18.0" barrel and was more widely favored than the rifle made by Rock and Ribordy. The Smith Enterprise-based MK14 was then used as a basis to eventually create the Mk 14 Mod 0 with Springfield Armory, Inc. being tasked to supply the necessary machinery needed to create the weapon in cooperation with the Naval Surface Warfare Center Crane Division.

United States Navy SEALs were the first forces to be armed with the EBR in 2004, followed by the U.S. Coast Guard. The U.S. Army is also being armed with the M14EBR-RI, being created and updated by the Weapons Product Support Integration Directorate of the TACOM Life Cycle Management Command at the Keith L. Ware Test Facility in Rock Island Arsenal, Illinois; having fielded approximately 5,000 units by mid-2010. United States Marine Corps units were also considering the EBR, but wound up instead developing the M39 Enhanced Marksman Rifle.

The rifle has seen limited service outside of the U.S., primarily with the Australian SASR in their Afghanistan deployment.

Type Battle rifle, designated marksman rifle
Place of origin United States
Service history
In service 2004–Present

Wars War in Afghanistan
Iraq War
Production history
Designer Mike Rock and Jim Ribordy (Original)
Smith Enterprise, Inc.(Current)
Designed 2001
Manufacturer Naval Surface Warfare Center Crane Division
Smith Enterprise Inc.(Supplying parts)
Sage International (For the stock)
Weight 11.24 lb (5.1 kg)
Length 35 in (889 mm)
Barrel length 18 in (457 mm) (Mod 0), 22 in (558.8 mm) (Mod 1) (EBR-RI)
Cartridge 7.62×51mm NATO
Action Gas-operated, rotating bolt
Rate of fire Shooter Dependent/ Full Auto 725 RPM
Muzzle velocity 853 m/s (2,800 ft/s)
Effective firing range 500 m (547 yd)
800+ m (875 yd) (with optics)
Maximum firing range 2.5 miles (4.23 kilometers) (Confirmed/Point Target); 4 miles (6.4 kilometers) (Unconfirmed/Area Target)
Feed system 10 or 20-round detachable box magazine
Sights Modified M14 iron sights, normally used with a magnifying scope.

End notes