This Rearend XL Muzzle Brake from Q LLC is bored for .338-caliber rifles and cut with M18x1.5 threads, part of Q’s Rearend muzzle device lineup (Q LLC part no. RE-CBLX-M18X1.5).

Key Specifications

• Bored for .338 caliber.
• Cut with M18x1.5 metric threads, common on large-bore precision rifle barrels.
• XL designation indicates an extended-length version within Q’s Rearend lineup.
• Part of Q’s Rearend muzzle device family.
• Functions as a muzzle brake to help manage recoil.
• Suited to large-caliber precision or hunting rifle applications.
• Direct-thread installation, no adapter needed.
• Requires a barrel threaded to match the M18x1.5 spec.

Frequently Asked Questions

Will this fit a 6.5 or .308 rifle? No, this version is bored specifically for .338-caliber rifles.

What thread does it use? M18x1.5 metric threads, so it requires a barrel threaded to match.

Buy the Q LLC Rearend XL Muzzle Brake, .338 Caliber

Manage recoil on your .338-caliber rifle with this Q LLC Rearend XL brake. It ships fast from our Lubbock, Texas gun shop, and our AR-15 muzzle devices selection has more AR-15 muzzle devices.