Yankee Hill Machine sRx Short QD Muzzle Brake 5/8″-32

Yankee Hill Machine’s sRx Short Q.D. Muzzle Brake is a compact, low-profile muzzle device designed for use with the YHM sRx suppressor system. The device uses an internal taper seal forward of the threads to lock a suppressor in place and limit gas and debris accumulation on the threads. It is intended to be paired with the YHM sRx Adapter (YHM-4400) and adds minimal length and weight to the suppressor setup. The product is offered with a Black Phosphate finish and uses a 5/8″-32 thread pattern.

Key Specifications

• The model is sRx.
• The thread pattern is 5/8″-32 tpi.
• Requires pairing with the YHM sRx Adapter YHM-4400.
• The Q.D. mounting interface mates to the industry standard 1-3/8″ x 24 (HUB) mounting thread.
• The finish is listed as Black Phosphate.
• The product is described as providing a Q.D. mount for .30 caliber suppressors.
• The listed weight is 0.12 (manufacturer data).
• Includes an included shim kit per manufacturer data.

Compact and purpose-built, the YHM sRx Short Q.D. Muzzle Brake streamlines suppressor attachment while maintaining a low visual profile. Its tapered sealing surface and Q.D. interface make it a practical choice for users seeking a neat, efficient suppressor setup that minimizes added bulk. Well-suited for builds that prioritize ease of use and a clean appearance, it integrates into the broader YHM sRx system for consistent mounting and operation.