PSA PA-15 5.56 NATO AR-15 with Strike Industries GRIDLOK LITE Free-Float Handguard, Bushmaster 16" 1:8 Barrel, Adjustable Gas Block, and Multi-Port Brake
This customized PSA PA-15 pairs a Bushmaster-marked 16-inch 5.56 NATO 1:8 twist barrel with a Strike Industries GRIDLOK LITE free-float M-LOK handguard. It adds a Supreme Arms adjustable gas block, a multi-port brake/compensator, a heavy buffer, and a lock wedge for secure handguard fitment. The A3 flat-top upper provides a full-length Picatinny rail with forward assist, brass deflector, and ejection port cover, while the PSA-marked lower retains SAFE/FIRE selector markings. It accepts STANAG-pattern AR-15 magazines and comes with a 30-round Magpul PMAG.
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.
Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are light signs of handling and some small surface scratches on exterior surfaces.
What’s Included
- Palmetto State Armory PA-15 semi-automatic rifle
- 1x 30-round Magpul PMAG polymer AR-15 magazine
The Strike Industries GRIDLOK LITE aluminum handguard is a free-float M-LOK design and includes a lock wedge for a secure fit. This setup reduces handguard contact with the barrel and provides ample mounting real estate along the full-length top rail of the A3 upper.
The barrel is marked "BFI 5.56 NATO 1/8," indicating a Bushmaster-manufactured 1:8 twist 16-inch barrel. It is threaded and fitted with a multi-port brake/compensator featuring a pronged face to help control muzzle movement.
A Supreme Arms adjustable gas block allows fine-tuning of the direct-impingement system. The build also incorporates a heavy buffer to complement the gas system for reliable function across varying ammunition and conditions.
The upper receiver features a flat-top, full-length Picatinny rail, forward assist, brass deflector, and ejection port cover. The lower receiver is marked "Palmetto State Armory, West Columbia, S.C." with SAFE/FIRE selector positions and accepts STANAG-pattern AR-15 magazines.
The rifle includes a collapsible polymer stock with a 13.0-inch length of pull and an A2-style polymer pistol grip. The aluminum receivers wear a matte black anodized finish, and the rifle is configured without sights.