The MRE package is created to do the job with M4 carbines, and accommodates a fixed A2 front sight tower with carbine length fuel process. It extends past the entrance sight base, furnishing more rail Room for your mounting of tactical add-ons. Involves a few KAC eleven Rib Rail Panels. https://jaidenvhxjs.bleepblogs.com/27057135/the-single-best-strategy-to-use-for-knights-armament-m4-quad-rail