Our patented CMR rail system is a lightweight, rugged, one piece, free float hand guard that, when installed, gives the upper a continuous 12 o’clock rail. The CMR system clamps to a proprietary barrel nut that can be installed on 5.56/.223 based AR platform systems. It was designed with the top 1913 rail for mounting the most common accessories, yet does away with the need for 1913 rail at the 3, 6, and 9 o'clock positions. Here, other accessories can be directly mounted to it with a dedicated, simple, light-weight, mount. However, it does allow for 1913 rail to be added, if needed, for some less common accessories. Additionally, we built in anti-rotation QD sling swivels in 4 positions. The main objective was to have a smaller, lighter weight, more ergonomic, hand guard that maintains or enhances functionality for the end user. As professional end users ourselves, we know the importance of keeping things simple and that was our design intent here... a K.I.S.S. (keep it simple, stupid) system.
Material: 6061 T6
Finish: Type III hard coat anodized
Integrated QD Attachment sockets - Limited Movement
Weight : 9.5in-9.4oz with barrel nut | 7.3oz without barrel nut
:11in-10.4oz with barrel nut | 8.3oz without barrel nut
:12in-10.7oz with barrel nut | 8.6oz without barrel nut
:13in-11oz with barrel nut | 9oz without barrel nut
:14in-11.8oz with barrel nut | 9.6oz without barrel nut
Length :9.5in (9.418”)
Width: 1.56(body of tube) 1.75 (at QD sling swivels)
Inside diameter: 1.12
Rails: 1913 spec rail on topMade in USA
***IMPORTANT PLEASE NOTE***
- Currently our gas block is the only one that Centurion Arms can guarantee to fit under the CMR. This is due to the CMR's extreme low profile.
- Screws are included with the purchase of all rail systems. Replacement screws are available to purchase if necessary.