Centurion Arms C4 Rail System - 7-inch Carbine

MSRP: $229.95
Your Price: $218.00
(You save $11.95 )
(3 reviews) Write a Review
Stock Status:

Out of stock

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.

Technical Specs
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 with proper T-marks
Fasteners: grade 8 bolts phosphate finished
***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

3 Reviews

Write a Review
  • 5
    Very good product

    Posted by John DeGrave on Jan 11th 2020

    Extremely solid and durable product .

  • 5
    7-inch C4 Rail System

    Posted by Grant Rasmussen on Oct 27th 2017

    This was my first time buying from BCM and it won't be my last. This rail system fits a traditional M4 with a fixed front sight and was easy to install. It arrived before it was suppose to and came with some cool BCM stickers. This rail system is light-weight and has been a dream to shoot. Would recommend anyone to purchase this if you got the dough.

  • 5
    Very Good!

    Posted by Matthew Drinkwalter on Nov 11th 2015

    Very good rail system and easy to install. If you know your way around AR's in terms of take down internally and externally than you will have this installed quick and be very satisfied. A lot of rails on the market but I believe centurion along with Daniel defense are among the top two companies when it comes to rails. I popped my gas block off than pulled my gas tube. I than took a drummel to my delta ring. I than snipped the front clamp off. Once that is done I installed a new gas block, which I recommend because their inexpensive. I also put a new gas tube in. I than installed my rail, leaving the factory barrel nut I than installed the rail. Impressed to say the least. Very light but strong and fits snug against your upper receiver. A hell of a product and centurion did well by having it clamp to barrel nut.