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C4 Rail, 7 Inch
C4 Rail, 7 Inch

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Our Price: $229.95

Stock Status:(Out of Stock)
Availability:: Usually Ships in 1 to 2 Business Days
Product Code: 0609-7

Barrel Nut:

Custom Cerakote Options:


The Centurion patent pending 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.


• Material: 6061 T6

• Finish: : type 3 hard coat anodized

• Weight: 8.7oz with screws---1.1oz with standard barrel nut

• Length: 7.3in

• Width: 2.1in

• Height: 2.38

• Inside diameter: 1.37

• Rails: 1913 spec rail

• Fasteners: grade 8 bolts phosphate finished


***Please Note***
- Screws are included with the purchase of all rail systems. Replacement screws are available to purchase if necessary.

Average Rating: 5 of 5 Total Reviews: 1 Write a review »

  0 of 0 people found the following review helpful:
Could not be happier! March 10, 2019
Reviewer: Randall Ellsworth from Water  
Perfect fit, form and function! Easy install and would highly recommend over other free-float options. Also, if you are starting with an uninstalled and new barrel it is a simple process to remove the front hand guard retaining plate. Just go slow and DO NOT USE A DREMEL TOOL! But some Aviation Snips and use needle-nose pliers.