The MRE package is created to get the job done with M4 carbines, and accommodates a set A2 entrance sight tower with carbine length fuel process. It extends past the entrance sight foundation, providing supplemental rail Place with the mounting of tactical equipment. Includes 3 KAC 11 Rib Rail Panels. https://lukaslsxhl.oblogation.com/26391905/the-ultimate-guide-to-knights-armament-m4-quad-rail