Best price
$142.60at Brownells
In stock Lowest in 30 dayschecked Nov 13, 2026
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
Specifications
- Manufacturer
- Faxon Firearms
- Color
- Black
- Platform
- AR-15
- Caliber
- 300 Blackout
- Twist rate
- 1:8
- Thread pattern
- 5/8 x 24
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price 17.76% off · ends Nov 15 · exclusions apply | $142.60checked Nov 13, 2026 | In stock | Buy at Brownells | |
| OpticsPlanet | $148.00Salechecked Nov 13, 2026 | In stock | Buy at OpticsPlanet | |
| MidwayUSA | $148.00checked Nov 13, 2026 | In stock | Buy at MidwayUSA | |
| Ammunition Depot | $148.00checked Nov 13, 2026 | In stock | Buy at Ammunition Depot | |
| GunMag Warehouse | $148.99checked Nov 13, 2026 | In stock | Buy at GunMag Warehouse | |
| Battlehawk Armory | $121.06Salechecked Nov 13, 2026 | Check store | Buy at Battlehawk Armory | |
| GrabAGun | $142.60checked Nov 13, 2026 | Check store | Buy at GrabAGun | |
| Palmetto State Armory | $142.99checked Nov 13, 2026 | Check store | Buy at Palmetto State Armory | |
| AR15Discounts 5% off | $148.00checked Nov 13, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $148.00checked Nov 13, 2026 | Check store | Buy at Dirty Bird |
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
Lowest in-stock price in the last 30 days: $142.60 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $148.00 | $148.00 | $148.00 |
| Ammunition Depot | $148.00 | $142.60 | $148.00 |
| Battlehawk Armory | $121.06 | $121.06 | $124.80 |
| Brownells | $142.60 | $142.60 | $142.60 |
| Dirty Bird | $148.00 | $148.00 | $148.00 |
| GrabAGun | $142.60 | $142.60 | $142.60 |
| GunMag Warehouse | $148.99 | $148.99 | $148.99 |
| MidwayUSA | $148.00 | $148.00 | $148.00 |
| OpticsPlanet | $148.00 | $140.60 | $148.00 |
| Palmetto State Armory | $142.99 | $134.99 | $142.99 |
Since Sep 27, 2026.
About this part
The Barrel 300 Blackout 7.5 Pistol-Length Black is a 300 Blackout barrel from Faxon Firearms with a pistol gas system. It's sold by 10 stores (5 in stock), from $121.06 to $148.99. The lowest in-stock price in the last 30 days was $142.60 at Brownells.
From the manufacturer
Target Rifle Accuracy Combined With Carbine Balance & Maneuverability
Faxon’s .300 AAC Blackout Gunner Barrels are machined from hardened 4150 Chrome moly in a unique contour that balances rigidity - for excellent accuracy - with light weight for maneuverability. From the muzzle back to the gas block .300 AAC Blackout Gunner Barrels match Faxon’s skinny "Pencil" profile to keep weight down and preserve ease of handling. There’s more metal from the gas block back to the barrel extension to provide rigidity and combat distortion due to heat buildup during long shooting sessions.
Innovative 5R rifling of the .300 AAC Blackout Gunner Profile Barrel’s bore provides excellent accuracy and makes cleaning easier. Unlike traditional rifling, 5R rifling has offset lands and grooves, which helps keep the bullet on-axis as it travels down the barrel.
- Available in 7.5" and 10.5", with gas port drilled for pistol length gas tube, and 16" with carbine-length gas port
- Gas Port: .104"
- Gas block journal: .750"
- Outside diameter: 1.9"
- SAAMI-chambered with 1-8" twist rifling stabilized the full range of 300 BLK bullets
- 11° target crowned muzzle
- 5/8-24 tpi muzzle threads
- Black QPQ Nitride finish with NP3-coated barrel extension
The Faxon .300 AAC Blackout Gunner Barrel profile shifts the center of gravity rearward, putting the weight under the support hand and making the rifle easier to maneuver.
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