Centurion Arms

Centurion Arms C4 Rail System - 12" Black

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The Centurion Arms patent pending C4 rail system is a lightweight, rugged, 2 piece free float rail that when installed gives the upper 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.  The design allows the installation of the rail on an upper assembly without removing the front sight post or permanently attached muzzle devices.

• Material: 6061 T6
• Finish: : type 3 hard coat anodized
• Weight: 14.2oz with screws---1.1oz  with standard barrel nut
• Length: 12in
• Width: 2.1in
• Height: 2.38
• Inside diameter: 1.37
• Rails: 1913 spec rail with proper T-marks
• Fasteners: grade 8 bolts phosphate finished

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