The IBN system enables the rail alone to act as the barrel nut when torqued onto the rifle, entirely getting rid of the need for any independent metal barrel nut. M-LOK components could possibly be mounted any where alongside the URX 4?s size, making it One of the more person https://knightsarmamentrail41743.dsiblogger.com/59232982/the-definitive-guide-to-kac-m4-ras