CENTURION ARMS 12" Cutout AR15 Carbine C4 Rail Front Sight Pocket M16 AR-15 Handguard
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
T-marks have been removed from the latest version
• 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: 2.38
• Inside diameter: 1.37
• Rails: 1913 spec rail
• Fasteners: grade 8 bolts phosphate finished
• MADE IN USA
- Screws are included with the purchase of all rail systems.
Barrel Nut Sold Separately
Adams Arms Piston Compatible (Clamp, set screw & pinned models)
5 of 5 STAR "Great Quad Rail Option" October 2019
Reviewer: Christian L from CA
If your tool collection is a Dremel, some hex wrenches, and some oil you have everything you need for installing this rail. I use this so I can access an adjustable gas block and have an extended sight radius. It's lightweight enough that you can carry it at a class all day long and sturdy enough that when it gets smashed into a door frame at that class it won't bend.
5 of 5 STAR "Rock Solid Rail" October 2019
Reviewer: Jeremy S from NC
Most Rock Solid Font Sight Post Cutout Rail that I have used and it uses a standard barrel nut. No need for proprietary tools. Outstanding!