Palmetto State Armory PA-15 .300 AAC Blackout 10.5" AR-15 SBR, Collapsible Stock, 5 Mags
This factory-built PSA PA-15 pairs a 10.5-inch nitride-treated barrel with a compact, free-float M-LOK handguard, creating a short-barreled rifle that is ready for suppressed or unsuppressed .300 AAC Blackout work. A hard-coat anodized 7075-T6 receiver set, six-position stock, and pistol-length gas system keep the package light, reliable, and highly maneuverable. With five Magpul 30-round PMAGs and an installed skeletonized hand stop, it arrives as a complete, range-ready setup.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Rifling: Excellent – Sharp lands and grooves.
This firearm displays minor handling marks, including small scratches and blemishes on the exterior surfaces; these do not affect function or performance.
What’s Included
- Palmetto State Armory PA-15 .300 AAC Blackout SBR
- 5 × 30-round Magpul PMAG Gen M3 polymer magazines
- Skeletonized aluminum M-LOK hand stop (installed)
The 10.5-inch barrel is machined from 4150 CM-V steel and finished with corrosion-resistant nitride for long service life. A 5/8-24 threaded muzzle lets you attach common .30-caliber devices or suppressors without additional work.
The PSA nine-inch free-float M-LOK handguard keeps weight forward to a minimum while offering plenty of rail slots for lights or accessories. An integral QD socket simplifies sling attachment.
Both upper and lower receivers are forged from 7075-T6 aluminum and protected by a Mil-Spec hard-coat anodized finish. The lower is marked “PA-15 MULTI,” giving future caliber flexibility within the AR-15 platform.
A six-position collapsible stock and A2-style pistol grip provide familiar ergonomics and allow quick length-of-pull adjustments. Standard AR controls, including a manual safety and magazine release, ensure immediate user familiarity.
Factory assembly by Palmetto State Armory means the rifle benefits from PSA’s in-house QC and warranty support, offering peace of mind alongside solid performance.




