PSA 8.5" Pistol-length 300AAC Blackout Nitride 7" Lightweight M-LOK Upper With BCG & CH - 5165449777
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Palmetto State Armory
Overview
The PSA 8.5" Pistol-length 300AAC Blackout Nitride Upper is a complete upper receiver designed specifically for the AR-15 platform. With an 8.5-inch barrel and a pistol-length gas system, this upper is optimized for the 300 Blackout caliber, providing reliable cycling and performance in a compact configuration. This upper is commonly used in builds that prioritize maneuverability and versatility, making it suitable for both close-quarters and suppressed shooting applications.
Specifications
PSA 8.5" Pistol-length 300AAC Blackout Nitride 7" Lightweight M-LOK Upper With BCG & CH - 5165449777
August 2026 on GunPartPicker
PSA 8.5" Pistol-length 300AAC Blackout Nitride 7" Lightweight M-LOK Upper With BCG & CH - 5165449777 ranked #109 of the 690 upper receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #264 of the 1,634 upper receivers builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today the one retailer we track has it in stock. Prices barely moved in August 2026, holding around $319.99, so there haven't been real sales lately. Buying today, the lowest price is $319.99 at Palmetto State Armory, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 6 builds that include this one
PSA JAKL 300 Blackout Complete Pistol Lower Classic EPT, Black
FAXON Firearms 5.56 M16 Bolt Carrier Group Nitride TIN PVD
Samson Manufacturing M-LOK Vertical Grip - Short - FDE
Breek Arms Warhammer MOD2 AR-15 Ambidextrous Charging Handle - FDE
Phase 5 Weapon Systems Extended, V3, Bolt Release, Flat Dark Earth
B5 Systems End Plate Steel Black
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