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Palmetto State Armory
Overview
The PSA 10.5" Pistol Length 300AAC Blackout Upper is a complete upper receiver designed for AR-15 platforms, featuring a 10.5-inch barrel with a 1:8 twist rate ideal for stabilizing a wide range of bullet weights. The pistol-length gas system ensures reliable cycling with subsonic and supersonic ammunition, making it a versatile choice for various shooting applications. This upper is commonly found in builds that prioritize compactness and maneuverability while chambered in 300 Blackout for both suppressed and unsuppressed shooting.
PSA 10.5" Pistol Length 300AAC Blackout 1:8 Nitride 9" Lightweight M-LOK Freedom Upper With BCG & CH
Prices checked
PSA 10.5" Pistol Length 300AAC Blackout 1:8 Nitride 9" Lightweight M-LOK Freedom Upper With BCG & CH ranked #22 of the 844 upper receivers builders added on GunPartPicker in October 2026, behind the Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4, with about 1 in every 167 upper receivers added to builds. Up from #25 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, and today the one retailer we track has it in stock. Prices barely moved in October 2026, holding around $329.99, with no real sale all month. Buying today, the lowest price is $329.99 at Palmetto State Armory, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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:
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