BCM BCM4 MCMR-13 5.56 NATO 16 in AR-15 Rifle, Free-Float M-LOK Handguard, A2 Flash Suppressor, Matte Black
This Bravo Company Mfg. BCM4 MCMR-13 is a 16-inch, 5.56 NATO AR-15 pattern rifle built in Hartland, Wisconsin. It features BCM’s free-float MCMR-13 M-LOK handguard with a T-marked, continuous Picatinny top rail, an A2-style flash suppressor, and proven BCM receiver features. It is in very good overall condition with an excellent, mirror-bright bore.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are light markings from previous handling and use. Please refer to the pictures for additional detail.
What’s Included
- 1 Magpul PMAG AR/M4 GEN M2 MOE 30-round magazine
- M-LOK 1913 Picatinny rail section (installed on handguard)
Built on the AR-15 platform, this semi-automatic, direct-impingement rifle is chambered in 5.56mm NATO with a 16-inch threaded barrel capped by an A2-style flash suppressor. It is configured for standard detachable box magazines with a 30+1 capacity.
The BCM MCMR-13 free-float aluminum handguard provides M-LOK mounting slots and carries a US Patent 8904691 marking. A T-marked, continuous Picatinny rail runs from the upper receiver across the handguard for uninterrupted accessory alignment.
The upper receiver includes a forward assist, case deflector, and a BCM-marked ejection-port cover. Receivers are aluminum with a durable matte black anodized finish to match the handguard.
Furniture includes a collapsible Magpul carbine stock and a textured polymer pistol grip. Controls are straightforward with a manual safety and a standard magazine release, and the listed length of pull is 12.5 inches.




