What sets the M4 RAS besides other two-piece quad rails that you can buy is it securely locks to the rifle’s barrel nut by way of a clamp and screw arrangement, which makes it an incredibly good Basis on which to mount tactical add-ons. Since the advent of maneuver warfare, https://hectorwuery.alltdesign.com/rumored-buzz-on-knights-armament-ras-49292410