PSA PA-15 BRN-180 5.56mm NATO AR-Style Pistol, 10.5 in Piston Upper, Side-Charging, SB Tactical Brace
This custom-configured PSA PA-15 pairs a Brownells BRN-180 10.5 in short-stroke gas piston upper with a PSA forged lower for a compact, reliable 5.56mm NATO pistol. It features the BRN-180 buffer-less recoil system, a right-side charging handle, and a free-float M-LOK handguard with a full-length 1913 top rail. The SB Tactical stabilizing brace and nitrided, threaded barrel with a pronged flash hider round out a feature-rich build with modern functionality.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal markings from previous handling and use. Please refer to the photos for close-up views of the exterior surfaces.
What’s Included
- PSA PA-15 BRN-180 5.56mm NATO pistol (as configured)
- One 30-round Hexmag HX AR Series polymer AR-15 magazine
This build centers on the Brownells BRN-180 10.5 in upper installed on a PSA PA-15 forged lower. The system uses a short-stroke gas piston with a dual guide-rod, buffer-less recoil assembly, allowing a compact form factor without a receiver extension. The receiver is 7075-T6 aluminum with a hardcoat anodized finish.
Operation is streamlined by a right-side charging handle and an enlarged ejection port. The BRN-180 upper is marked accordingly and omits a dust cover and forward assist by design. A two-position gas plug supports tuning for suppressed and unsuppressed use.
The 10.5 in nitrided barrel is threaded and fitted with a pronged flash hider. A free-float aluminum M-LOK handguard and a full-length 1913 top rail provide robust mounting surfaces along the top of the firearm and the handguard.
Controls include a manual safety selector and a polymer AR-15 pistol grip. An SB Tactical stabilizing brace with a Velcro strap is installed. The pistol feeds from AR-15/STANAG magazines and has a 30+1 capacity; one 30-round Hexmag is included.
Markings include a PSA PA-15 forged lower noted as West Columbia, S.C., and BRN-180 markings on the upper. The hardcoat anodized finish and clean internal condition complement the overall excellent presentation.




