PSA PA-10 Gen 3 .308 Win AR-10, 20 in Stainless Threaded Barrel, Free-Float M-LOK, Magpul MOE Stock, Excellent
This Palmetto State Armory PA-10 Gen 3 stands out with a 20-inch stainless steel, threaded barrel, forged 7075-T6 receivers, and a free-float M-LOK handguard. The flat-top upper includes a forward assist, case deflector, and ejection-port cover, and the lower is marked G3-10. It ships with a 25-round Magpul PMAG LR/SR GEN M3 windowed magazine and is in excellent overall condition.
Gen 3 updates include relief cuts for broader BCG compatibility, a staked castle nut, and a standardized carbine receiver extension paired with a short heavy buffer. This PA-10 uses SR-25/LR-308 pattern magazines and has a stated capacity of 25+1.
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 handling marks visible from previous use. Please refer to the photos for additional detail.
What’s Included
- Original box
- 1x 25-round Magpul PMAG LR/SR GEN M3 windowed magazine marked 7.62x51
The PA-10 Gen 3 is an AR-10 pattern rifle built around forged 7075-T6 aluminum receivers with a hard-coat anodized finish. The upper is a flat-top Picatinny design with a forward assist, case deflector, and ejection-port cover, and the lower is marked G3-10. It runs a semi-automatic, direct-impingement system with a manual safety.
The 20-inch stainless steel barrel features a 1:10 twist and is threaded, with an A2-style birdcage flash hider installed. This setup offers a durable bore and standard muzzle interface for compatible devices.
The free-float aluminum M-LOK handguard includes an integral QD sling socket and Picatinny sections at 12 o'clock, providing practical mounting surfaces while keeping the barrel isolated from handguard pressure. The rifle also includes receiver-top Picatinny rail space.
Furniture includes a Magpul MOE 6-position adjustable stock and an A2-style polymer pistol grip. Gen 3 enhancements add relief cuts for broader BCG compatibility, a staked castle nut, and a standardized carbine receiver extension combined with a short heavy buffer. The rifle uses SR-25/LR-308 pattern magazines and has a 25+1 capacity; one 25-round PMAG LR/SR GEN M3 windowed magazine marked 7.62x51 is included.

