PSA PA-15 .300 AAC Blackout AR-15 with BCM Upper, 12.5 in Barrel, BCM KMR-A10 KeyMod Handguard, Threaded Muzzle, MFT Brace
This custom AR-15 pairs a PSA PA-15 lower with a BCM upper receiver chambered in .300 AAC Blackout. It features a 12.5-inch barrel with a threaded muzzle and removable multi-port device, a BCM KMR-A10 KeyMod free-float handguard with a continuous T-marked top rail, and a Mission First Tactical Battlelink Minimalist stabilizing brace. Markings on the BCM upper, KMR-A handguard, and PSA lower confirm components and configuration.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present from prior use; please refer to the photos for details.
What's Included
- Mission First Tactical Battlelink Minimalist pistol stabilizing brace (installed)
- Magpul MOE polymer pistol grip (installed)
- Bravo Company BCM KMR-Alpha 10-inch KeyMod free-float handguard (installed)
- Removable multi-port brake/compensator (installed)
- 1x 30-round polymer AR-15 pattern magazine
The build centers on a BCM upper receiver marked 300 BLACKOUT with the BCM star, mated to a PSA PA-15 lower marked MULTI with SAFE/FIRE selector positions. The upper includes standard AR features such as a forward assist, dust cover, and case deflector. The receiver set is aluminum and made in the USA.
The 12.5-inch .300 AAC Blackout barrel is threaded and fitted with a removable multi-port device. The bore and rifling are excellent, with a clean, mirror finish and sharp lands and grooves. This configuration is well-suited to the cartridge’s performance range while maintaining a compact overall profile.
A BCM KMR-Alpha 10-inch KeyMod free-float handguard provides a lightweight aluminum interface and is marked with its model and U.S. Patent 8,904,691. The continuous, T-marked top rail bridges the receiver and handguard for consistent mounting along the upper.
Furniture includes a Mission First Tactical Battlelink Minimalist stabilizing brace (BMPSB) and a Magpul MOE pistol grip. The lower uses a manual safety and standard AR-15 controls. Capacity is 30+1 with the included magazine.