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  • CMR - 14" CMR - 14"
  • CMR - 14" CMR - 14"
  • CMR - 14" CMR - 14"
  • CMR - 9.5" CMR - 9.5"
  • CMR - 9.5" CMR - 9.5"
  • CMR - 9.5" CMR - 9.5"

Centurion Arms C4 Handguard


Mega Arms AR15 Wedge Lock Free Float Handguard - M-LOK

Centurion Arms AR15 CMR Handguard

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Quick Overview

Ultra slim, ultra tough.

Availability: In stock

Regular Price: $229.95

Special Price $218.95

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Regular Price: $229.95

Special Price $218.95


Our patent-pending 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

:11in-10.4oz with barrel nut

:12in-10.7oz with barrel nut

:14in-14.5oz with barrel nut

Length :

9.5in (9.418”)

:11in (10.994”)

:12in (12.56")

:14in (14.25”)

Width: 1.56(body of tube) 1.75 (at QD sling swivels)

Height: 1.995

Inside diameter: 1.12

Rails: 1913 spec rail on top
Made in USA

- 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.  However, the Odin Works, Troy, and Midwest PX low profile gas blocks have been tested to work with the CMR.

Additional Information

Color Black
Material 6061
Attachment Style Other

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