PSA PA-15 M4 Carbine-Length Lightweight 5.56 NATO AR-15 Rifle | 16-Inch Nitride Barrel, Free-Float 13.5-Inch M-LOK Handguard
This Palmetto State Armory PA-15 is a recent-production, full-size AR-15 that combines a 16-inch 4150 CMV nitride barrel, forged 7075-T6 receivers, and a free-float 13.5-inch M-LOK handguard to deliver a lightweight, modular carbine. Its 1:7 twist optimizes heavier 5.56 NATO projectiles, while the carbine-length gas system and low-profile gas block keep handling smooth and reliable. Four 30-round magazines, including a Magpul PMAG Gen M3, round out a ready-to-run package.
Condition
Overall Condition: Excellent – showing only faint signs of prior handling or use.
Bore Condition: Excellent – clean, mirror finish with sharp lands and grooves.
Specific Condition Notes: Minimal exterior marks consistent with light handling; bolt and carrier show negligible wear.
What’s Included
- Palmetto State Armory factory cardboard shipping box
- 4 × 30-round Mission First Tactical Extreme Duty polymer magazines (one Magpul PMAG Gen M3)
Forged 7075-T6 upper and lower receivers provide proven strength without unnecessary weight. The flat-top upper features a full-length Picatinny rail, giving you immediate optic flexibility.
The 16-inch nitride-treated M4-profile barrel is threaded 1/2-28, ready for muzzle devices or a suppressor. Nitride hardening resists corrosion and simplifies cleaning, while the 1:7 rifling stabilizes 62- to 77-grain bullets favored for defense and accuracy.
A lightweight 13.5-inch free-float aluminum M-LOK handguard keeps accessory mounting simple and maintains barrel harmonics for consistent precision. The low-profile gas block stays out of the way of longer sighting systems and suppressor setups.
The six-position collapsible stock and A2-style pistol grip give quick length-of-pull adjustment and a familiar feel. Standard AR controls, including a Mil-Spec magazine release, ensure compatibility with your existing parts and training.