AIM Sports® AR / M4 Combo Kit(V3) comes with flip-up sights, free float quad rail and vertical grip.
Get a more stable and accurate grip. This AR / M4 Combo Kit (V3) includes a carbine length free float quad rail, front flip-up sight, rear flip-up sight and a vertical grip. It's perfect for short barrels and AR pistols. The 7" free float quad rail is made of T-6 aluminum with a barrel nut.Details: