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C4 Rail, Mid Length Cutout
C4 Rail, Mid Length Cutout

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Our Price: $320.00

Price with Selected Options: $320.00

Stock Status:In Stock
Availability:: Usually Ships in 1 to 2 Business Days
Product Code: 0609-MC

Barrel Nut:

Custom Cerakote Options:


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.


• Material: 6061 T6

• Finish: : type 3 hard coat anodized

• Weight: 12.4oz with screws---1.1oz with standard barrel nut

• Length: Top 9 1/4in Sides 11 1/2in Bottom 10 5/8in

• 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: Average Rating: 5 of 5 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Centurion C4 midlength cutout December 17, 2019
Reviewer: Ben from Western GA, United States  
This rail is the best quad rail I have ever used. Lightweight, locks up tight, precisely machined. It feels indestructible. This rail brought me back to quad rails from the Keymod/MLOK dark side. My favorite rail by far, saving up for another.

  0 of 0 people found the following review helpful:
5 of 5 Cmr middy cutout November 1, 2019
Reviewer: Darrin from North Carolina  
Got this secondhand and am in process of saving for a comolete 12,5 with fsp and this rail. It is on my short list of factory rifles.
Now, on to the rail. Its incredible. I honestly dont know how dd got their risII accepted instead of this... Its lighter, better, more appealing anf appears stronger!
Bottom line? Get it.