Centurion Arms 5.56 CMR M-LOK Rail Handguards


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Full Details & Specifications

Centurion Arms 5.56 CMR M-LOK Rail Handguards


Centurion Arm's 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. Due to popular demand, the CMR is now updated with either M-LOK or Keymod attachment systems for even greater flexibility. Additionally, the CMR is 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, Centurion knows the importance of keeping things simple and that was the design intent here... a K.I.S.S. (keep it simple, stupid) system.


  • Material: 6061 T6
  • Finish: Type III hard coat anodized
  • Weight:
    • 10.5- 9.1oz with barrel nut and hardware
    • 13in-10.3oz with barrel nut and hardware
    • 15in-11.1oz with barrel nut and hardware
  • Length:
    • 10in (10.55")
    • 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
  • Integrated QD Attachment sockets - Limited Movement


- Currently the CMR 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.

Manufacturer Centurion Arms
Shipping Restriction ITAR/Export Restricted
MSRP $225.00
Weapon Model No
Barrel Rest Free Float
Material No
Material Finish No
Color Black


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