PSA 10.5" Pistol Length 300AAC Blackout 1:8 Nitride 9" Lightweight M-LOK Freedom Upper With BCG & CH

All Palmetto State Armory upper receivers
Palmetto State Armory PSA 10.5" Pistol Length 300AAC Blackout 1:8 Nitride 9" Lightweight M-Lok Freedom Upper With BCG & CH - Upper Receiver for AR-15 - view 1
Palmetto State Armory PSA 10.5" Pistol Length 300AAC Blackout 1:8 Nitride 9" Lightweight M-Lok Freedom Upper With BCG & CH - Upper Receiver for AR-15 - view 2
Buy Now

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.

Specifications

MPN516446429
ColorBlack
AssemblyComplete
Caliber300 Blackout
Barrel Length10.5
Twist Rate1:8
Gas System LengthPistol
Material7075-T6 Aluminum
PlatformAR-15

Available Merchants(1)

Prices checked

Price Alert

Get an email if the price drops 10% or more.
Palmetto State Armory logo
Palmetto State Armory
Free shipping
Shipping Speed
In Stock
$329.99

October 2026 on GunPartPicker

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.

Trending upper receivers →

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 →

Review this product

Share your thoughts with other customers

Be the first to review

No reviews yet. Be the first to review this product!