Q Rearend XL Muzzle Brake M18x1.5 – .338 Caliber

The Q Rearend XL muzzle brake is engineered to reduce felt recoil and muzzle rise on .338 caliber rifles with M18x1.5 threading. The XL designation indicates a larger bore diameter to accommodate magnum .338 projectiles, with aggressive side ports directing gas outward to counter muzzle climb during rapid strings or heavy-recoiling loads. This brake serves dual purposes: immediate recoil mitigation for shooters running .338 as a standalone configuration, or as a mount for Q suppressors when paired with their Plan B mounting system.

Precision machined from high-strength steel with a durable black finish, the Rearend XL features Q's taper-mount interface geometry for reliable can attachment. The M18x1.5 thread pitch is common on many European and select American rifle platforms chambered in .338 Lapua Magnum, .338 Norma Magnum, and similar cartridges. Installation requires proper torque and thread engagement to ensure concentricity—use of a precision alignment rod is recommended before live fire. This is a brake first, suppressor mount second; verify your specific rifle's threading before purchase.

• Type: Muzzle Brake / Suppressor Mount
• Caliber: .338
• Thread Pitch: M18x1.5
• Material: Steel
• Finish: Black
• Compatible Firearms: .338 caliber rifles with M18x1.5 threaded muzzles
• Suppressor Compatibility: Q Plan B mounting system