Diamondback Firearms OEM Replacement Barrel AR Platform AR-15 .300 AAC Blackout 8.5in Heavy Profile Pistol-Length 1-8 Twist 5/8 x 24 Thread Chrome
$77.49 at Ammunition Depot · 7 stores
In stock
PSA AR-15 Barrel 7.5" .300 Blackout Pistol-Length Nitride
Palmetto State Armory · Barrels
No ratings yetBest price
$79.99at Palmetto State Armory
checked Oct 21, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Palmetto State Armory | $79.99checked Oct 21, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Dashed line = out of stock. Tracking since Oct 16, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Palmetto State Armory | $79.99 | $79.99 | $79.99 |
Since Oct 16, 2026.
About this part
The PSA AR-15 Barrel 7.5" .300 Blackout Pistol-Length Nitride is a 7.5" 300 Blackout barrel from Palmetto State Armory with a pistol gas system. One store lists it, Palmetto State Armory at $79.99.
Fits and works with
- Caliber
- 300 Blackout · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Pistol · Handguards
- Barrel length
- 7.5" · Handguards
Specifications
- Manufacturer
- Palmetto State Armory
- Platform
- AR-15
- Caliber
- 300 Blackout
- Gas system
- Pistol
- Barrel length
- 7.5"
From the manufacturer
PSA AR-15 Barrel 7.5" .300 Blackout Pistol-Length Nitride - 5165449963
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