Ballistic Advantage Modern Series .300 AR Rifle Barrel 10.5in MSARB30
$156.99 at GunMag Warehouse · 7 stores
In stock
Best price
$156.75at OpticsPlanet
In stock Sale 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
- Ballistic Advantage
- Color
- Black
- Platform
- AR-15
- Caliber
- 300 Blackout
- Gas system
- Pistol
- Twist rate
- 1:7
- Thread pattern
- 5/8 x 24
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet Best price | $156.75Salechecked Nov 13, 2026 | In stock | Buy at OpticsPlanet | |
| Brownells 17.76% off · ends Nov 15 · exclusions apply | $156.99checked Nov 13, 2026 | In stock | Buy at Brownells | |
| GunMag Warehouse | $156.99checked Nov 13, 2026 | In stock | Buy at GunMag Warehouse | |
| GrabAGun | $109.99Salechecked Nov 13, 2026 | Check store | Buy at GrabAGun | |
| Battlehawk Armory | $113.23Salechecked Oct 18, 2026 | Check store | Buy at Battlehawk Armory | |
| AR15Discounts 5% off | $114.95checked Nov 13, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $139.95checked Nov 13, 2026 | Check store | Buy at Dirty Bird | |
| Palmetto State Armory | $156.99checked Oct 21, 2026 | Check store | Buy at Palmetto State Armory | |
| Ammunition Depot | $156.75checked Oct 26, 2026 | Out of stock | Buy at Ammunition Depot | |
| Kentucky Gun Co | $156.75checked Nov 13, 2026 | Out of stock | Buy at Kentucky Gun Co |
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: $156.75 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $114.95 | $114.95 | $114.95 |
| Ammunition Depot | — | $156.75 | $156.75 |
| Battlehawk Armory | — | $108.04 | $113.23 |
| Brownells | $156.99 | $156.99 | $156.99 |
| Dirty Bird | $139.95 | $139.95 | $139.95 |
| GrabAGun | $109.99 | $109.99 | $109.99 |
| GunMag Warehouse | $156.99 | $156.99 | $156.99 |
| Kentucky Gun Co | $156.75 | $156.75 | $156.75 |
| OpticsPlanet | $156.75 | $89.92 | $156.75 |
| Palmetto State Armory | — | $156.99 | $156.99 |
Since Sep 27, 2026.
About this part
The Modern AR-15 Pistol Length 10 Barrel .300 Blackout is a 300 Blackout barrel from Ballistic Advantage with a pistol gas system. It's sold by 10 stores (3 in stock), from $109.99 to $156.99. The lowest in-stock price in the last 30 days was $156.75 at Ammunition Depot.
From the manufacturer
This .300 Blackout chambered 6 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. All NFA/ATF Rules Apply You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm. Additional Info Material: 4150 Chrome Moly Vanadium Finish: QPQ Corrosion Resistant Gas Block Journal: .750" Twist Rate: 1:7 inches Mfg: Ballistic Advantage
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