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
Available Merchants(1)
Prices checked
Stock Alert
October 2026 on GunPartPicker
PSA .300 Blackout AR-15 Barrel 10.5" Pistol-Length 1:8 4150V Nitride ranked #80 of the 329 barrels builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #84 of the 1,045 barrels builders have added. Builds with this barrel are nearly all chambered in 300 Blackout, nearly all on pistol-length gas, and nearly all AR-15.
Today the one retailer we track is out of stock. Listed prices start at $99.99 at Palmetto State Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
PSA AR-15 Built Stealth Upper Receiver - No T Marks - 516444539
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black
PSA JAKL 300 Blackout Complete Pistol Lower Classic EPT, Black
Colt 5.56 NATO M16 / AR-15 Bolt Carrier Group
Midwest Industries AR-15 G4 10.5" Handguard M-LOK Black
Strike Industries Collar Adjustable Gas Block
Builds Featuring This Part
See all builds →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 | $1797.29 |
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