The IBN method permits the rail by itself to act because the barrel nut when torqued onto the rifle, absolutely eliminating the need for a individual steel barrel nut. M-LOK extras could be mounted everywhere alongside the URX four?s size, rendering it one of the most person configurable models that https://paxtonhxkyk.post-blogs.com/47994239/knights-armament-m4-quad-rail-things-to-know-before-you-buy