YHM Mini Q.D. Brake | 9mm | 5/8×24 | YHM-3109-1MB-24A

The Yankee Hill Machine Mini Q.D. Muzzle Brake is a compact, quick-detach muzzle device engineered for 9mm bore applications and YHM fast-attach suppressor systems. It combines a single-port brake profile with a Q.D. mount interface and ships with a shim kit to help ensure proper alignment and timing. The brake is finished in black with a Melonite surface treatment for wear resistance and appears designed for pistol-caliber carbines and other 9mm platforms used in competition or range practice.

Product Specifications

• The manufacturer is Yankee Hill Machine.
• The model is Mini QD Brake.
• The bore specification is 9mm.
• The NFA thread pattern is 5/8×24.
• The finish and treatment are Black and Melonite.
• The device includes a shim kit for timing and alignment.
• The device features a Q.D. suppressor mount compatible with YHM fast-attach systems.
• The design is a single-port mini Q.D. brake.
• The overall length is listed as 1.6″ in the provided specifications.
• Package dimensions are listed as 1.75 x 3.20 x 7.00.
• The product type is listed as a Muzzle Brake.
• The color is specified as Black.
• Manufacturer notice: No direct ship to California.
• Additional feature: Q.D. Suppressor Mt. 9mm Bore.
• UPC: 841812102007.

This Mini Q.D. Brake emphasizes compact form and fast-attach suppressor compatibility for shooters who prioritize a low-profile muzzle device on 9mm platforms. Its single-port profile and included shim kit make it well suited for use in competitive pistol-caliber carbine settings and for suppressed range training, where quick attachment and consistent timing matter. Users looking for a compact, YHM-compatible Q.D. interface will find the Mini Q.D. Brake a practical option.

Users report that the brake remains comfortable to shoot both suppressed and unsuppressed, and owners commonly praise its compact size and reliable Q.D. mount compatibility.

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