Centurion Arms 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 Centurion Arms design intent here… a K.I.S.S. (keep it simple, stupid) system.
Features:
Material: 6061 T6
Finish: Type III hard coat anodized
Weight: 9.5in- 8.4oz with barrel nut and hardware
10.5in-9oz with barrel nut and hardware
13in-10.3oz with barrel nut and hardware
15in-11.1oz with barrel nut and hardware
Length: 9.5in (9.45″)
10.5in (10.6″)
13in (13.468″)
15in (15.044″)
Width: 1.39(body of tube) 1.75 (at QD sling swivels)
Height: 1.910(body of tube)
Inside diameter: 1.230
Rails: 1913 spec rail on top
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