PSA .300 Blackout AR-15 Barrel 10.5" Pistol-Length 1:8 4150V Nitride
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Palmetto State Armory
Overview
The PSA .300 Blackout AR-15 Barrel is a 10.5" pistol-length barrel designed specifically for the .300 Blackout caliber, offering a twist rate of 1:8 that helps stabilize a variety of bullet weights effectively. Its nitride finish enhances durability and corrosion resistance, making it suitable for rugged use. This barrel is commonly found in pistol builds that prioritize compactness and versatility, particularly in applications such as home defense or tactical use.
Specifications
PSA .300 Blackout AR-15 Barrel 10.5" Pistol-Length 1:8 4150V Nitride
August 2026 on GunPartPicker
PSA .300 Blackout AR-15 Barrel 10.5" Pistol-Length 1:8 4150V Nitride ranked #97 of the 298 barrels builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since April 2026. All time, it ranks #92 of the 814 barrels 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 $99.99, so there haven't been real sales lately. Buying today, the lowest price is $99.99 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 8 builds that include this one
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black
Aero Precision M4E1 Threaded Stripped AR-15 Upper - No Forward Assist - Anodized Black
Colt 5.56 NATO M16 / AR-15 Bolt Carrier Group
Leapers UTG PRO Model 4/15 Super Slim Free Float AR-15 Handguard - Black - 13"
Strike Industries Collar Adjustable Gas Block
TacFire Pistol Length Micro Gas Tube w/Pin/Steel 5.25 in Stainless Steel Small
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
Builds Featuring This Part
See all 1 →Builds in the community that include the PSA .300 Blackout AR-15 Barrel 10.5" Pistol-Length 1:8 4150V Nitride
| Build | Parts | Total |
|---|---|---|
 | 21 | $1774.19 |
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