The original BC1.5 has identical performance to all of the 5.56BattleComps, but has been extended and pre-drilled for permanentattachment on 14.5″ barrels needing 16.1″ overall length.
Professional installation is required.A competent gunsmith will custom fit any needed pin through the 7 hole, so no pin is included.The overall length of the unit is approximately 2.15″ long and weighs 2.0 ounces.
It fits all barrels with 1/2 28 RH standard threads.Specifically designed for 5.56 NATO and .223 Rem ammunition.ALL BattleComp units are California Legal Compensators and have been since May of 2010.Crush washer included.
