The IBN program permits the rail by itself to act as the barrel nut when torqued on to the rifle, wholly eradicating the need for the separate steel barrel nut. M-LOK add-ons could possibly be mounted wherever alongside the URX four?s length, rendering it Among the most person configurable layouts https://caidenvgpbj.blog-a-story.com/6413614/not-known-factual-statements-about-kac-rail