Bcm Gunfighter M-LOK Rail 556 13″

(2 customer reviews)


SKU: RRBCM-MCMR-13-556 Categories: , , ,


BCM MCMR-13 (M-LOK® Compatible* Modular Rail)

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 8.2 oz
  • Handguard mounting hardware 2.3 oz
  • 1.3” Inside Diameter
  • 1.5″ Wide

Actual length when measured to flare is 13.4″

Designed to be used with pistol length, carbine length, mid length, or Mil-Spec M16 rifle length gas systems; all with a low profile gas block.

Additional information

Weight N/A

Bravo, Company


AR, Rifles


(MCMR), Compatible, MLOK, Modular, Rail

2 reviews for Bcm Gunfighter M-LOK Rail 556 13″

  1. Robert Wright (verified owner)

    Love these rails – just wish they weren’t so dang expensive – of course its not Geissele expensive but there light and have a solid lock up…I want more

  2. Chris Shafer (verified owner)

    Great product

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