resist corrosion. M39 Enhanced Marksman Rifle The M39 Enhanced Marksman Rifle began development around 2006 at the request of Marine Corps Systems Command, who wanted a versatile semi-automatic rifle that could operate alongside the M40A5. It entered service in 2008, replacing the standard M14 DMR in Marine Corps usage. Contractors Military While the Naval Surface Warfare Center Crane Division creates the military Mk 14 Mod 0 and Mod 1 rifles, Sage International was contracted to provide the weapon's chassis-type stock. Civilian The civilian version created by Smith Enterprise Inc. is also known as the MK14 SEI. The Sage EBR chassis stock is available in a carbine variant known as the M14ALCS/CV. The carbine variant is also known as the MK14 SEI Mod 1. Others include Fulton Armory, firing in semi-automatic mode instead of fully automatic. Troy Industries has created a replica of the EBR's modular system made by Naval Surface Warfare Center Crane Division called the Troy Modular Chassis System, which can be used by mounting any functioning M1A or M14 rifle on the MCS. Philippine arms company FERFRANS has created their version of the Mk 14 Mod 0 called the FERFRANS SOPMOD M14/M1A Enhanced Battle Rifle, which uses a Sage International M14/M1A EBR Tactical Stock System aluminum chassis, an M4 buttstock, and a GRSC M4-62 General Purpose Combat Recticle. Users : Used by the Special Air Service Regiment in anti-Taliban operations. : Iraqi Special Operations Forces : Used in the wars in Iraq and Afghanistan Non-state actors Free Syrian Army See also List of individual weapons of the U.S. Armed Forces List of battle rifles References 7.62×51mm NATO battle rifles Rifles of the United States Designated marksman rifles Military equipment introduced in the 2000s