BCM® MCMR-10 (M-LOK® Compatible* Modular Rail)

MSRP: $190.00
Your Price: $179.95
(You save $10.05 )
(43 reviews) Write a Review
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BCM® MCMR-10 (M-LOK® Compatible* Modular Rail) Handguard

Featuring the same industry leading barrel nut and lock up design as originally introduced on BCM's evolutionary KMR handguard, the MCMR Series of handguards gives the shooter modularity in the M-LOK platform.

This proprietary patented mounting system (US Patent 8904691), includes a mechanical index to the 12:00 rail and positions mounting hardware to mitigate the movement caused by heat generated by the weapon system.


  • MCMR features M-LOK Compatible mounting system.
  • Free Float Handguard eliminates loads from barrel, reducing the deflection for more accurate shooting.
  • Precision Machined Aerospace 6061-T6 Aluminum Alloy, for high strength and lightweight.
  • Proprietary engineered profile offers additional cross sectional strength.
  • Steel Barrel Nut (same KMR, MCMR, and QRF series), to resist movement under heat.
  • Hard Coat Anodized per Mil-A-8625F, Type III, Class 2
  • Handguard alone weighs 6.6 oz
  • Handguard mounting hardware 2.3 oz
  • Includes BCM M-LOK Compatible Sling Mount, (FREE for a limited time)
  • 1.3" Inside Diameter
  • 1.5" Wide

Actual length when measured to flare is 10.5"

Designed to be used with pistol length, carbine length, or mid length gas systems; all with a low profile gas block.


The barrel nut will fit over all mil-spec diameter barrels (max of 1")


Bravo Company MFG, Inc. US Patent 8904691

Please note: Nylon/Polymer Picatinny rail sections are for NON-load bearing accessories only (grips, hand stops, light mounts). For load bearing accessories (bipod mounts, sling mounts, vertical grips, barricade supports), we recommend aluminum Picatinny rail sections. Do NOT exceed 20 in/lbs. when securing fasteners on Polymer accessories. Aluminum Picatinny rail sections may be torqued to 30 in/lbs.

*M-LOK® is a registered trademark of Magpul Industries Corp.


WARNING: This product can expose you to chemicals including Cumene and Titanium Dioxide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov

***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

43 Reviews

  • 5
    Mod Rail

    I was pleasantly surprised by the low weight combined with great durability. Oh and looks awesome!

  • 5
    Never Disappointed With BCM

    Machining is perfect and fit and finish are exceptional! Nothing less than expected from BCM!

  • 5
    Top notch

    Excellent product from an excellent company

  • 5
    10” handguard

    Have several items from BCM and they never disappoint. Haven’t had a chance to tryout their warranty department bc their products are just good. Would recommend to everyone. Thanks.

  • 5
    Bravo Co products

    No worries here with any of their products. Made to be used hard, not stuffed in the safe. Shipping is also great,, enough said. .

  • 4

    Haven’t had a chance to install it yet but it seems to be durable despite weighing practically nothing. It would be nice it the barrel but was longer like the geissele barrel nut but the fit is so tight I don’t think it will go anywhere once in place and torqued down.

  • 5
    M-Lok rail system

    An awesome product! The finish is clean, the weight is perfect. The install is a little tough but it's all worth it in the end with a little elbow grease and patience. The rail system in the end is extremely sturdy, in other words has no movement what so ever. I'm extremely proud of the purchase and anyone who decides to purchase this rail system will feel the same way too.

  • 5

    Quality, fit, and finish are top quality. Rock solid mounting solution. Light and functional. Everything you would expect from a BCM product. Would highly recommend

  • 5
    great rail

    This hand guard is absolutely rock solid and soo light on my 11.3 build. it makes the front end so much easier to maneuver compared to others that I have used. Don't question it, just buy it for your next build!