BCM BCM4 .300 AAC Blackout AR-15 Pistol, 12.5 Inch Barrel, MCMR-10 Free-Float M-LOK Handguard, SB Tactical Brace, BCM Gunfighter Charging Handle, 30+1
This BCM BCM4 AR-15 pistol in .300 AAC Blackout features a 12.5 inch barrel, BCM MCMR-10 free-float M-LOK handguard, and a continuous T-marked Picatinny top rail. It is built on aluminum receivers with BCM logos and caliber markings, includes a BCM Gunfighter charging handle and an SB Tactical adjustable brace, and comes in very good overall condition with an excellent, mirror-bright bore. A dedicated .300 BLK Magpul PMAG is included.
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 some mild scuffs and light wear from prior handling and use.
What’s Included
- SB Tactical adjustable pistol stabilizing brace with strap (installed)
- M-LOK angled foregrip/hand stop (installed)
- Multi-port muzzle brake/compensator (installed)
- 1x 30-round Magpul PMAG dedicated for .300 BLK (polymer)
Chambered in .300 AAC Blackout (7.62x35mm), this BCM4 pistol is configured on the AR-15 platform with a direct impingement action and manual safety. The receivers are aluminum with a black finish and clear BCM Rifle Company markings, including Model BCM4 and Cal MULTI on the lower and "300 BLACKOUT" on the upper.
The 12.5 inch barrel is threaded and fitted with a multi-port muzzle brake/compensator. The upper includes a forward assist and shell deflector. A continuous, T-marked Picatinny rail runs from the upper receiver across the handguard, offering a single uninterrupted mounting surface.
The BCM MCMR-10 free-float aluminum handguard provides M-LOK slots for accessories and is factory-marked "BCM-MCMR-10" with M-LOK licensing and US Patent 8904691 noted. An M-LOK angled foregrip/hand stop is installed for added control.
Controls and furniture include a BCM Gunfighter charging handle, a textured beavertail pistol grip, and a left-side safety lever with SAFE/SEMI selector markings. The pistol configuration uses a carbine-type receiver extension with an SB Tactical adjustable stabilizing brace and strap.
Capacity is 30+1, and the pistol ships with one Magpul PMAG dedicated for .300 BLK. Country of origin is the USA.