The MRE package is intended to perform with M4 carbines, and accommodates a hard and fast A2 front sight tower with carbine duration gas procedure. It extends past the entrance sight foundation, delivering extra rail Place to the mounting of tactical accessories. Incorporates a few KAC 11 Rib Rail Panels. https://kacrasrail16062.prublogger.com/26425466/facts-about-knights-armament-m4-quad-rail-revealed