PSA 7.5" 300AAC Blackout Nitride 9" Lightweight M-LOK Upper With BCG & CH
All Palmetto State Armory upper receivers
Click to see full view
Palmetto State Armory
Overview
The PSA 7.5" 300AAC Blackout Nitride Upper is a complete assembly designed for the AR-15 platform, featuring a 7.5-inch barrel optimized for .300 Blackout ammunition. This upper receiver combines a lightweight design with a reliable gas system tailored for pistol configurations, making it a solid choice for those seeking compact performance. Builders often utilize this upper in setups where maneuverability and firepower in a smaller package are essential, typically in pistol builds chambered in .300 Blackout.
Specifications
PSA 7.5" 300AAC Blackout Nitride 9" Lightweight M-LOK Upper With BCG & CH
Available Merchants(1)
Prices checked
Stock Alert
October 2026 on GunPartPicker
PSA 7.5" 300AAC Blackout Nitride 9" Lightweight M-LOK Upper With BCG & CH ranked #35 of the 844 upper receivers builders added on GunPartPicker in October 2026, behind the TacFire Pistol Upper Assembly .300 AAC Blackout 10 Barrel, with about 1 in every 200 upper receivers added to builds. Down from #34 in September. Builds with this upper receiver are nearly all chambered in 300 Blackout, nearly all on pistol-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, but today the one retailer we track is out of stock. The best price drifted down from $319.99 to $299.99 over October 2026 without a real sale. Listed prices start at $299.99 at Palmetto State Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
Not sure which upper receiver to pick?
We ranked every upper receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: Most Popular AR-15 Upper Receivers →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the builds that include this one
Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11
Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black
Magpul AFG-2 Angled Fore Grip - Black
FAXON Firearms 5.56 M16 Bolt Carrier Group Nitride TIN PVD
Magpul AR-15 MOE Stock Collapsible Mil-Spec Black
Builds Featuring This Part
See all builds →Builds in the community that include the PSA 7.5" 300AAC Blackout Nitride 9" Lightweight M-Lok Upper With BCG & CH
| Build | Parts | Total |
|---|---|---|
 | 8 | $1276.24 |
No reviews yet. Be the first to review this product!