The MRE package is built to perform with M4 carbines, and accommodates a fixed A2 entrance sight tower with carbine length gas technique. It extends past the entrance sight foundation, delivering further rail Area with the mounting of tactical add-ons. Includes 3 KAC 11 Rib Rail Panels. The SaniSure® Mixed4Sure™ https://chesteri371nxh7.blogproducer.com/profile