MRP Barrel 300BLK 16 1:7 Chrome Lined

LMT Defense · Barrels

Best price

$459.00at Brownells

checked Sep 30, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$459.00checked Sep 30, 2026	Check store	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.

About this part

The MRP Barrel 300BLK 16 1:7 Chrome Lined is a 300 Blackout barrel from LMT Defense. One store lists it, Brownells at $459.00.

Fits and works with

Caliber: 300 Blackout · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups

Specifications

Manufacturer: LMT Defense
Color: Black
Platform: AR-15

From the manufacturer

The LMT MRP 300 Blackout barrels are a proprietary design for the LMT MRP AR-15 Upper Receivers.
A unique design, the Lewis Machine & Tool AR-15 MRP Upper Receiver allows the end user to swap barrels quickly and conveniently for flexibility in caliber, length, and even gas system.
These 300 Blackout barrels feature a DI gas system, chrome lining, a 1-7” twist rate, and are available in 10.5” and 16” lengths.

300 Blackout
MRP compatible
1-7 twist
Chrome lined
A2 style flash hider

Give your LMT MRP Upper Receiver caliber versatility with a 300 Blackout barrel.
Note: 10.5” barrel should not be used with MRP Rifle length Upper Receiver.

All NFA rules apply!