SKU 51655133774
Model Number 51655133774
Brand Palmetto State Armory
UPC 51655133774
Caliber .308 Win




Barrel Length: 18″
Gas System: Mid-Length
Barrel Profile: Heavy
Barrel Steel: 416R Stainless Steel
Barrel Finish: Stainless Steel
Chrome Lining: None
Muzzle Thread: 5/8-24
Chamber: .308 WIN
Twist Rate: 1/10″
Barrel Extension: M4-style
Diameter at Gas Block: .750
Gas Block Type: Low-profile 3-position click switch adjustable gas block
Gas Tube: Black Nitride Gas Tube
Muzzle Device: A2 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: PA10
Handguard Type: PSA 15″ M-Lok Free Float Rail with Anti-slip and anti-rotation features
Bolt Carrier Group Included: Yes, Toolcraft PA10 BCG with extra power extractor spring
Charging Handle Included: Yes, 7075 T6 CH Included
Build Kit:  PSA PA10 MOE EPT Lower Build Kit, Black



Palmetto State Armory proudly presents the Gen3 PA10 Barreled Upper Receiver, a testament to our commitment to continual improvement. With enhanced reliability and longevity, this upgraded platform showcases never-before-seen features that will elevate your shooting experience. Explore the new and improved PSA PA10 Gen3, featuring a black nitride stainless gas tube for increased heat and corrosion resistance, along with a dimpled barrel for effortless gas block replacement. The inclusion of a newly designed click switch 3-position adjustable gas block allows for precise tuning to match your specific load. We value your feedback and can’t wait for you to experience these remarkable enhancements.

Gen 3 Benefits at a glance:

  • Dimpled 416R Stainless Steel Barrel
  • 3 Position Adjustable Click Switch Gas Block
  • Extra Power Extractor Springs
  • 7075 T6 Charging Handle Included in all uppers
  • Black Nitride Gas Tube
  • Barrel Nuts properly torqued to military specifications
  • Anti-slip and anti-rotation handguards

Barrel: The dimpled, 416R Stainless Steel, .308 WIN 1/10 twist, mid-length gas system barrel is paired with a Palmetto State Armory 15″ Partial Picatinny Lightweight M-Lok free-float rail, low profile adjustable click detent 3 position gas block, and an A2-style muzzle device. The gas system is enhanced with a nitrided gas tube in order to better resist high heat and corrosion.

Upper: Precision machined from forged 7075-T6 aluminum, then Black anodize hard coated to MIL-8625 Type 3 class 2. With enhanced dual retention anti-slip and anti-rotating handguards.

Bolt Carrier Group: Toolcraft PA10 308 BCG is designed with double ejectors in order to ensure flawless cycling. 9310 steel bolt assembly, nitride treated for durability. 8620 carrier, with a nitride-treated gas key, properly staked with grade 8 fasteners. Charging handle is also included.

The Gen3 PA10 upper receivers are functionally and aesthetically compatible with Gen2 and Gen3 PA-10 Lower receivers. However, there are external cosmetic differences when mixing Gen1 with Gen2 and Gen3 upper and lower receivers that some may not find appealing.

The AR10 platform does not enjoy a common design between manufacturers, like the AR15. As a result, there can and will be subtle differences in the parts kits of various manufacturers. Some parts, like the fire control group, are shared with the AR15 platform to preserve the options for upgrading. For best results, we recommend only using PSA PA10 parts with our uppers and lower receivers. We do not recommend using other manufacturers’ parts in our products.


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