SILENCER BASE + EXTERNAL BRAKE + STD BARREL END CAP + STD INTERNAL BRAKE
ADDED LENGTH:  256mm  OVERALL LENGTH:  269mm    DIAMETER:  38mm    WEIGHT:  445g
THREAD: M12 X 1, M13 X 1, M14 X 1, M16 X 1, M18 X 1, & IMPERIAL
SUGESTED CALIBER: .204 > .220 (-1), .243 > .270 (-2), 7x57 > 30-378 (-3)