Krieger Barrel SPR-MK12
Special Purpose Rifle Contour Barrel 18.1″” long. M4 Feed Ramps come standard. 1:7 or 1:7.7 twist,
weighs approximately 2.5 pounds.
Comes standard with M4 Feed Ramps, 1/2-28 threaded muzzle, and the proper OPS, Inc. muzzle contour for OPS, Inc. collar.