The MRE package is designed to do the job with M4 carbines, and accommodates a fixed A2 entrance sight tower with carbine length gasoline system. It extends previous the entrance sight base, delivering further rail Area for your mounting of tactical equipment. Incorporates a few KAC eleven Rib Rail Panels. https://lemmyj148fqz4.blog-gold.com/32826148/the-definitive-guide-to-kac-ras-rail