FACTS ABOUT KNIGHTS ARMAMENT M4 QUAD RAIL REVEALED

The SMR MK8 also features Geissele’s proprietary 2.twenty five″ prolonged barrel nut. This increases the floor contact in which the rail interfaces Using the receiver and makes a System which might be dependable to generally be straight and correct all the length on the no cost float rail.The full abilities from the E3 Bolt are understood when