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 7.62/.308 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 and using the MLOK mounting system. 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.
***Current CMR MLOK models are DPMS high pattern receivers***
Material: 6061 T6
Finish: Type III hard coat anodized
Integrated QD Attachment sockets - Limited Movement
Weight: 13in-15 oz with barrel nut | 15in-16.3 oz
Barrel nut: 4.6 oz 2.5 in long / 1.53 O.D. / I.D. to fit up to 1.2 in barrel
Length :13in (13") | 15in (15â)
Width: 1.61 in (body of tube) 1.96 in (at QD Sling Swivels)
Height: 2.121 in
Inside Diameter: 1.441 in
Rails: 1913 spec rail on top
Barrel nut: 4130 steel and 2.5in long
Made in USA
*** We recommend gunsmith installation for all of our parts. We cannot warranty items damaged by improper installation.
***IMPORTANT PLEASE NOTE***
- Screws, proprietary barrel nut, and wrench are included with the purchase of all rail systems. Replacement screws, barrel nuts, and wrenches are available to purchase if necessary.
Another great rail from Centurion, to go along with my 3 C4 rails. The 15" mlok rail fit perfectly with an 18" barrel. It locks up tight, and provides plenty of space for mounting accessories, or in my case, an mlok bipod mount. No issue fitting an adjustable gas block underneath, and making changes is easy as well.
This rail mount is extremely solid. The rail itself has a great feel. Rail diameter is large enough to fit over most gas blocks, but thin enough to grip comfortably