Must be 21 or older to purchase.
If you live in California, please read this notice before ordering.
It is the customer's responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16". Federal NFA regulations are applicable to this item.
Barrel Length: 4"
Gas System: Blowback
Barrel Profile: Heavy
Barrel Steel: 4150V Chrome Moly Steel
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 1/2-36
Chamber: 9mm (9x19)
Twist Rate: 1 in 10"
Barrel Extension: Blowback
Diameter at Gas Block: N/A
Gas Block Type: N/A
Muzzle Device: PSA Fluted 9mm Flash Can
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 6" Keymod
Bolt Carrier Group Included: Yes
Bolt Steel: 8620
Bolt Carrier Profile: 9mm Hybrid
Charging Handle Included: Yes
Lower Receiver: Forged 7075 T6 Aluminum
Receiver Finish: Hardcoat Anodized
Fire Control Group: Single-Stage, Mil-spec style
Grip: Magpul, Black
Buffer Tube: 7075 T6 Aluminum
Pistol Brace: SB Tactical Pistol Stabilizing Brace, Black
Magazine: ETS Clear Magazine, 31 Round
Barrel: 4" chrome moly steel barrel. Chambered in 9mm, (9x19), with a 1/10 twist. The barrel is nitride treated for durability and finished off with a Palmetto State Armory 6" keymod free-float rail and a Palmetto State Armory Fluted 9mm Flash Can.
Flash Can: Palmetto State Armory's Fluted "FLASH CAN". This is a solid 6061 aluminum device that is designed to direct muzzle gases and the muzzle flash forward. Threaded 1/2-36 for 9mm. Black military-style hard anodizing. THIS DEVICE IS NOT DESIGNED TO REDUCE RECOIL, MUZZLE RISE, OR FLASH SIGNATURE. This device is designed to direct gasses and noise forward away from the shooter and enhance the weapon's appearance.
Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. These upper receivers are made for us right here in the USA.
Bolt Carrier Group: G-9 Hybrid 9mm BCG. Phosphate coated, 8620 steel, G-9 Hybrid Bolt allows use with either Glock®-style, or Colt®-style magazine, Palmetto State Armory lowers. Includes charging handle.
Lower:. Forged 7075 T6 aluminum and then hard coat anodized, these lowers are purpose built to accept 9mm Glock®-style magazines. Designed to work with PSA's new 9mm Hybrid uppers. The lower is assembled with a Palmetto State Armory MOE SOB lower build kit with a Magpul Grip, PSA pistol buffer tube, and SB Tactical Stabilizing Brace. Does not include last round bolt hold open feature.