Mk 14 EBR
Springfield Armory (US Government) · Battle Rifle · In Service · 2004
Also known as: Enhanced Battle Rifle, Mk 14 Mod 0, M14 EBR-RI, M39 EMR
Overview
The Mk 14 EBR is a select-fire battle rifle chambered in 7.62x51mm NATO, produced by Springfield Armory (US government) since 2004. Featuring a 20-round magazine capacity, this battle rifle offers generous firepower for duty use and home defense.
Specifications
| Weight (empty) | 5100 g (179.9 oz) |
| Weight (loaded) | 6350 g (224.0 oz) |
| Overall Length | 889 mm (35.00") |
| Barrel Length | 457 mm (17.99") |
| Action Type | Gas Operated Rotating Bolt |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Two Stage |
| Magazine Capacity | 20 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 975 m/s (3199 fps) |
| Muzzle Energy | 3457 J (2550 ft·lbf) |
| Effective Range | 690 m (755 yd) |
| Maximum Range | 3725 m (4074 yd) |
| Rate of Fire | 725 rpm |
| Barrel Rifling | Right Hand |
| Rifling Twist | 305 mm (12.01") |
| Number of Grooves | 4 |
| Frame Material | Aluminum Alloy |
| Barrel Material | Chrome Lined Steel |
| Stock Material | Aluminum Chassis |
| Finish | Matte Black |
Calibers
- 7.62x51mm NATO · primary · 7.62x51mm NATO — also known as .308 Winchester, 7.62mm NATO, 7.62x51mm
Features
- Firing modes: Semi Automatic, Full Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Manual Safety Selector
- Features: Select Fire, Chrome Lined Barrel, Gas Operated, Picatinny Rail, Adjustable Stock, Adjustable Cheek Piece, Pistol Grip, Bipod, Quad Rail Handguard, Flash Suppressor
Variants
- Mk 14 Mod 0 — Base Model
- Mk 14 Mod 1 — Improved
- Mk 14 Mod 2 — Improved
- M14 EBR-RI — Army Variant
- Mk 14 SEI — Custom
- M39 EMR — Marine Corps
Base model
Service history
Operators
- United States Navy SEALs · adopted 2004 · as Mk 14 Mod 0
- United States Army · adopted 2007 · as M14 EBR-RI
- United States Marine Corps · adopted 2008 · as M39 EMR
- 1st Special Forces Operational Detachment-Delta
- United States Coast Guard
- Australian Special Air Service Regiment
- Philippine Army
- Republic of China Armed Forces
- Iraqi Armed Forces
Conflicts
- War in Afghanistan (2001-2021)
- Iraq War (2003-2011)
Production
Estimated total produced: 9,000 · Production years: 2004-2011
Approximately 9,000 EBR chassis conversions assembled; M14 EBR-RI variant produced at Rock Island Arsenal with approximately 5,000 units fielded
Origin
Country of origin: United States
Designer: Mike Rock
Notes
The Mk 14 EBR chassis system was designed by Sage International and uses an aircraft-grade aluminum billet construction. The Mod 0 version features an 18-inch barrel, while the Mod 2 has a 22-inch barrel for improved long-range accuracy. The M14 EBR-RI (Rock Island) variant was produced at the Rock Island Arsenal by the Weapons Product Support Integration Directorate, with approximately 5,000 units fielded by mid-2010. The M39 EMR (Enhanced Marksman Rifle) is the USMC's variant, adapted as a semi-automatic-only designated marksman rifle. The rifle's 1:12 inch twist rate is optimized for 147-175 grain projectiles. Despite its weight of approximately 14-16 pounds loaded, the Mk 14 EBR earned a reputation for reliability and accuracy in Afghanistan and Iraq, particularly in environments where the 5.56mm NATO round was found lacking in range and terminal performance.
Background
The Mk 14 EBR was born out of necessity when U.S. forces in Afghanistan and Iraq found that the 5.56mm M4 carbine lacked the range and terminal effect needed for engagements in open terrain. By fitting old M14 rifles from Cold War-era storage into modern Sage International aluminum chassis systems, the military created an effective designated marksman rifle at a fraction of the cost of a new weapon system.