Centurion CM4 Quad Rail FSP Cut out


Only 1 left in stock

SKU: Centurion-060912P Category: Tags: , , ,


The Centurion patented C4 rail system is a lightweight, rugged, 2 piece free float rail that when installed gives the uppers a continuous 12o’clock rail. The C4 system is the lightest and most rigid rail that clamps to a standard barrel nut on all AR15, M4, and M16 type weapons systems. This design allows the installation of the rail on an upper assembly without removing the front sight post or permanently attached muzzle devices.
**Please Note: Current version of the rail has some slight cosmetic differences from stock photos
Engraving is now machine engraved and black anodized….no white markings.


Material: 6061 T6

Finish: : type 3 hard coat anodized

Weight: 14.2oz with screws—1.1oz with standard barrel nut

Length: 12.56in (pocket located for carbine length front sight post)

Width: 2.1in

Height: 2.38in

Inside diameter: 1.37

Rails: 1913 spec rail

Fasteners: grade 8 bolts phosphate finished




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