A REVIEW OF KNIGHTS ARMAMENT M4 QUAD RAIL

Hand guards will differ dependant upon which you select to construct. The URG-I By way of example takes advantage of a geissele mk16 9″ handguard which only appear to be available on their own recently released URG-I upper receivers.Set up was uncomplicated and simple, fantastic layout. Only needed to use a person shim to get it at eleven’ocloc