SR-25
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The SR-25 is a designated marksman rifle and semi-automatic sniper rifle designed by Eugene Stoner and manufactured by Knight's Armament Company.
The SR-25 uses a rotating bolt and a direct impingement gas system. It is loosely based on Stoner's... Wikipedia
Action: Gas-operated, rotating bolt
Cartridge: 7.62×51mm NATO
Designer: Eugene Stoner
In service: 1990–present
Length: 1,118 mm (44.0 in)
Manufacturer: Knight's Armament Company