Centurion Arms C4 Quad Rail Handguard - Carbine Cutout

Centurion Arms C4 Quad Rail Handguard - Carbine CutoutThe Centurion patent pending C4 rail system is a lightweight, rugged, 2 piece free float rail that when installed gives the uppers a continuous 12 o'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.Features:Material: 6061 T6Finish: type 3 hard coat anodizedWeight: 10.5oz with screws---1.1oz more with standard barrel nutLength: Top 7.25 in Sides 9.5 in Bottom 8 inHeight: 2.38Inside diameter: 1.37Rails: 1913 spec rail with proper T-marksFasteners: grade 8 bolts with phosphate finishMADE IN USA***Please Note***- Screws are included with the purchase of all rail systems. Replacement screws are available to purchase if necessary.