What sets the M4 RAS other than other two-piece quad rails available on the market is always that it securely locks into the rifle’s barrel nut by using a clamp and screw arrangement, making it a very sound foundation on which to mount tactical add-ons. Contains a few KAC 11 https://zanejtbip.bloggadores.com/26462724/top-guidelines-of-knights-armament-rail