The IBN method will allow the rail by itself to act since the barrel nut when torqued onto the rifle, absolutely removing the need for a different steel barrel nut. M-LOK add-ons could possibly be mounted any place together the URX four?s size, making it One of the more consumer https://knights-armament-m4-quad07406.snack-blog.com/26509086/how-much-you-need-to-expect-you-ll-pay-for-a-good-kac-ras-rail