What sets the M4 RAS other than other 2-piece quad rails out there is that it securely locks towards the rifle’s barrel nut via a clamp and screw arrangement, making it an extremely stable foundation on which to mount tactical equipment. Contains 3 KAC eleven Rib Rail Panels. For other https://kac-rail05272.bloguerosa.com/26315733/what-does-kac-rail-mean