LMT Monolithic 300 AAC Blackout 9" Pistol Length Bbl Black

Name: LMT Monolithic 300 AAC Blackout 9" Pistol Length Bbl Black
Brand: LMT Defense
Availability: OutOfStock

LMT Defense · Barrels

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Best price

$494.10at Brownells

Out of stock checked Oct 1, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$494.10checked Oct 1, 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.

Price history

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Dashed line = out of stock. Tracking since Sep 28, 2026.

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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