Maximize your accuracy and velocity with a premium barrel. Shop precision rifle and carbine barrels featuring optimal twist rates, salt nitrided or chrome lining, and threaded muzzles.
Rifle, AR-15, Handgun and Shotgun Barrels
A barrel has more effect on accuracy than any other part of your firearm. Boss Firearms carries replacement and upgrade barrels from LMT Defense, Proof Research, Q, Heckler & Koch and more, in calibers from 5.56 and .300 Blackout to 6.5 Creedmoor and 8.6 BLK.
Shop by type:
- AR-15 barrels in chrome-lined and stainless steel, from 10.5" to 20"
- Rifle barrels, including lightweight Proof Research carbon fiber barrels for precision builds
- Handgun barrels, including threaded barrels for suppressor use
- Shotgun barrels and M203 barrels
- Barrel actions for complete builds
LMT MRP barrel assemblies are a popular choice because the monolithic upper lets you swap barrels and calibers in minutes. Pair a new barrel with a muzzle device or suppressor, and see our LMT Defense parts for matching upper components.
Not sure what fits your rifle? Call 979-704-6269 and we will check compatibility before you order.
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Out of stock
Criterion CORE Series 300 AAC Blackout AR-15 Barrel 10.5" #300B-10CR3
Criterion
$329.99The Criterion CORE Series is an ideal pairing for the versatile .300 AAC Blackout cartridge. The modern taper improves on government contours, eliminating harsh diameter variations and adding...$329.99 -
Out of stock
Noveske SPR 6MM ARC 18" Barrel 1:7 Twist Rifle-Length Gas System #07000433
Noveske
$615.00The Noveske 18" SPR stainless barrel in 6mm ARC features a 1:7 twist rate and a rifle-length gas system with a low-profile configuration. It is threaded 5/8x24, includes a headspaced bolt, pinned gas...$615.00 -
Out of stock
Glock - OEM Threaded Barrel for Glock 19 Gen 5/19x/45 - 47698
Glock
$310.00High quality components and precise manufacturing make GLOCK parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure...$310.00