The C4 rail system is a lightweight, rugged, 2 piece free float rail that when installed gives the uppers a continuous top rail. The 12" Front Post cut out version is made for the carbine gas system.
- Continuous top rail
- Anti-Rotational Tabs
- Integrated QD Attachment sockets - Limited Movement
- 2 Piece Design for easy maintenance
- Length: 12"
- Extremely light weight: 13.8oz
Barrel Nut Sold Separately