Rainier Arms Select 300BLK Barrel 16in 1-7 Twist 5/8x24 Black Medium
$149.99 at OpticsPlanet
In stock Sale
Dark Storm Industries AR-15 .300 Blackout Socom 12.5in Threaded AR Barrel 1-8 Twist Pistol Gas 5/8x24 Threaded Black
Dark Storm Industries · Barrels
No ratings yetBest price
$149.95at OpticsPlanet
Out of stock checked Oct 22, 2026
In stock now instead
- Rainier Arms Select 300BLK Barrel 16in 1-7 Twist 5/8x24 Black M… $149.99at OpticsPlanet
- Faxon Firearms GUNNER, 300 BLK, Pistol-Length, 4150 QPQ - 10.5" $151.00at OpticsPlanet
- Modern AR-15 Pistol Length 9 Barrel .300 Blackout $152.00at Ammunition Depot
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $149.95checked Oct 22, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Similar barrels in stock
This part is out of stock at every store we track. These similar barrels are in stock, with today's prices.
Faxon Firearms GUNNER, 300 BLK, Pistol-Length, 4150 QPQ - 10.5"
$151.00 at OpticsPlanet · 8 stores
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Modern AR-15 Pistol Length 9 Barrel .300 Blackout
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Price history
Dashed line = out of stock. Tracking since Oct 17, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $149.95 | $149.95 | $149.95 |
Since Oct 17, 2026.
About this part
The Dark Storm Industries AR-15 .300 Blackout Socom 12.5in Threaded AR Barrel 1-8 Twist Pistol Gas 5/8x24 Threaded Black is a 12.5" 300 Blackout barrel from Dark Storm Industries with a pistol gas system. One store lists it, OpticsPlanet at $149.95.
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
- Muzzle thread
- 5/8x24 · Muzzle devices
- Barrel length
- 12.5" · Handguards
Specifications
- Manufacturer
- Dark Storm Industries
- Color
- Black
- Platform
- AR-15
- Caliber
- 300 Blackout
- Gas system
- Pistol
- Barrel length
- 12.5"
- Thread pattern
- 5/8 x 24
From the manufacturer
Dark Storm Industries AR-15 .300 Blackout Socom 12.5in Threaded AR Barrel 1-8 Twist Pistol Gas 5/8x24 Threaded Black. 300 Blackout 12.5in Barrel Optimized for AR-style pistol and SBR builds the DSI .300 Blackout Barrel offers reliable subsonic and supersonic performance. Constructed from premium 4142 Chromoly and nitride treated for durability it's the perfect foundation for your next suppressed or tactical upper. Specifications for Dark Storm Industries AR-15 .300 Blackout Socom 12.5in Threaded AR Barrel: Manufacturer: Dark Storm Industries Color: Black Finish: Nitride Fabric/Material: 4142 Steel Caliber: .300 AAC Blackout Barrel Length: 12.5 in Barrel Profile: SOCOM Gas System Length: Pistol Length Gas Block Journal Size-Diameter: .750 in Barrel Twist Rate: 1-8 Barrel Material: Steel Flutes: Straight Gun Make: AR Platform Gun Model: AR-15 Weight: 2 lb Firearms Threads Per Inch: 5/8x24 Features of Dark Storm Industries AR-15 .300 Blackout SOCOM Threaded Barrel Nitride treated for long life and corrosion resistance Package Contents: Dark Storm Industries AR-15 .300 Blackout SOCOM Threaded Barrel What firearm models does the manufacturer say Dark Storm Industries AR-15 .300 Blackout Socom 12.5in Threaded AR Barrel is compatible with? The manufacturer says that Dark Storm Industries AR-15 .300 Blackout Socom 12.5in Threaded AR Barrel is compatible with AR-15Dark Storm Industries DSI-BRL-300SC-12P8T-NIT: AR-15 .300 Blackout Socom 12.5in Threaded AR Barrel 1-8 Twist Pistol Gas 5/8x24 Threaded Black
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