LMT Monolithic 300 AAC Blackout 10.5" Pistol Length Bbl BLK
$554.40 at Brownells · 4 stores
In stock
Best price
$494.10at Brownells
Out of stock checked Oct 22, 2026
In stock now instead
- LMT Monolithic 300 AAC Blackout 10.5" Pistol Length Bbl BLK $554.40at Brownells
- LMT Monolithic 300 AAC Blackout 16" Pistol Length Bbl Black $554.40at Brownells
- UXR 300 AAC Blackout 14.5" Barrel Conversion Kit $499.95at Brownells
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $494.10checked Oct 22, 2026 | Out of stock | Buy at Brownells |
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.
LMT Monolithic 300 AAC Blackout 16" Pistol Length Bbl Black
$554.40 at Brownells · 3 stores
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UXR 300 AAC Blackout 14.5" Barrel Conversion Kit
$499.95 at Brownells · 2 stores
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Q 300 Blackout Light Profile 7" 1:5 Twist Barrel for Honey Badger
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Noveske 300 Blackout Barrel - 10.5 w/ HS Bolt
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AR-15/ 308 AR Stainless Steel Barrels - 300 AAC Blackout 1-8 Twist 16" Stainless Barrel
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Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $494.10 | $494.10 | $494.10 |
Since Sep 28, 2026.
About this part
The LMT Monolithic 300 AAC Blackout 9" Pistol Length Bbl Black is a 9" 300 Blackout barrel from LMT Defense with a pistol gas system. One store lists it, Brownells at $494.10.
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
- 9" · Handguards
Specifications
- Manufacturer
- LMT Defense
- Color
- Black
- Platform
- AR-15
- Caliber
- 300 Blackout
- Gas system
- Pistol
- Barrel length
- 9"
- Twist rate
- 1:7
From the manufacturer
LMT MONOLITHIC 300 AAC BLACKOUT RIFLE BARREL Designed for the LMT monolithic receiver, this barrel utilizes a low profile gas block, straight gas tube, and A2 birdcage for reduced flash. The barrel is coated and cryogenically treated for long term durability. AVAILABLE OPTIONS: 9a ^2 300 Blackout Chrome Lined 1:7a ^2 RH twist barrel 10.5a ^2 300 Blackout Chrome Lined 1:7a ^2 RH twist barrel 16a ^2 300 Blackout Chrome Lined 1:7a ^2 RH twist barrel SPECIFICATIONS: Barrel Material: Chromoly Operating Method: Direct Impingement Rifling Twist Rate: 1:7" Barrel Caliber: 300 AAC Blackout Mfg: Lmt Defense
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