11.5" Mako® AR-15 / M4 Quad Rail with 4 Picatinny rails.
Mako®'s Quad Rail system replaces your M4's forend, enabling a rigid, super-sturdy platform for any and all Picatinny accessories. Tough enough to withstand constant pounding, simple enough to install without the help or knowledge of a gunsmith.
Field-tested under extreme conditions for maximum performance and durability. Guaranteed to never bend, flex or deform under any conditions. Add one to your arsenal now!