The YHM Mini Phantom QD Muzzle Brake with a 9mm bore is the 5/8×24 version of the compact brake that Yankee Hill Machine builds for its fast-attach suppressor systems (YHM part no. YHM-3109-1MB-24A). YHM calls it highly anticipated, and it is aimed at pistol-caliber hosts that want a bore sized for 9mm. It is only 1.6 inches long and still shoots comfortably both suppressed and unsuppressed. A shim set is included for timing the brake to your barrel.

Key Specifications

• The thread for this SKU is 5/8×24, a pitch used on many 9mm carbine and pistol barrels, so match it to your muzzle.
• The bore is 9mm, which gives pistol-caliber bullets a matched through-bore.
• Overall length is 1.6 inches, compact enough to keep a PCC or pistol handy.
• Diameter is 1.245 inches, sized to the Phantom QD mounting interface.
• Weight is 3.2 ounces, light enough to leave the balance of a small host alone.
• Material is 4140 steel, a tough alloy suited to repeated mounting and live fire.
• The finish is black oxide, which gives the steel a dark, wear-resistant surface.
• A shim set is included for timing the brake to the barrel at installation.
• The maker calls for installation torque of 20 to 30 foot-pounds to keep the brake seated.
• It is built to shoot comfortably suppressed or unsuppressed, so it works on the bare muzzle too.

Frequently Asked Questions

Is this the 9mm brake or the rifle-caliber Mini brake? This listing is the 9mm bore version in 5/8×24. YHM also sells the Mini Phantom QD brake with a .350-inch bore for 5.56mm and .30 rifles.

Which thread pitches does the 9mm Mini brake come in? YHM lists the 9mm Mini QD brake in 1/2×28 and 5/8×24. This listing is the 5/8×24 version.

Can a blast deflector be added? YHM lists the 9mm Mini QD Muzzle Brake among the devices its Phantom QD Blast Deflector is designed to fit, and the deflector mounts and removes without tools.

Buy the YHM Mini Phantom QD Muzzle Brake, 9mm Bore, 5/8×24 Thread

A 9mm host does not need a rifle-sized bore, and this brake is sized for it while keeping the same quick-detach mount as the rest of the Phantom line. Order it from our Lubbock, Texas gun shop for fast direct shipping, and browse our Class 3 parts and accessories.