Facet mounted system with an built-in MILSTD 1913 rail piece for sighting methods. Made for use Together with the M203. AR15.COM is the planet's greatest firearm Neighborhood and it is a collecting place for firearm enthusiasts of all types. From hunters and military users, to Level of competition shooters and https://martinjwlra.onzeblog.com/29527371/facts-about-kac-quad-rail-revealed