YHM Sidewinder M2 | 9mm | 1/2-28 YHM-2065-28

The Yankee Hill Machine (YHM) Sidewinder M2 is a user-serviceable 9mm direct-thread suppressor designed for reduced sound and reliable semi-automatic function on compatible hosts. It features a mono-core baffle system and a redesigned booster/piston that accepts industry-standard pistons for interchangeability with other manufacturers. The unit includes 12 index points for adjusting point of impact while the suppressor remains attached and a measured dry sound signature of 125 dB on a Glock G17 using 147 gr FMJ; wet shooting typically yields lower readings.

Applications for this suppressor include routine range training where reduced sound and recoil aid follow-up shots, and competition or pistol-caliber carbine (PCC) shooting where consistency and reduced muzzle signature are desirable. It is also noted by the manufacturer to work with subsonic .300 BLK when used on appropriately configured barrels.

Product Specifications

• The caliber is listed as 9mm.
• The outer diameter measures 1.375 inches.
• The thread pattern is 1/2-28 tpi.
• The finish is specified as Type III Hardcoat Anodized (matte black).
• The manufacturer lists a decibel rating of 125 dB dry on a Glock G17 using 147 gr FMJ.
• The baffle design is a mono-core, hardcoat anodized style.
• The manufacturer describes baffle material as 7075-T6 aluminum, the outer tube as 6061-T6 aluminum, and key components as 17-4PH stainless steel.
• The booster system uses the industry’s unofficial standard piston and supports tool-less piston swaps via the redesigned rear cap.
• The device provides 12 index points to shift point of impact while remaining attached to the host firearm.
• The suppressor is user-serviceable and can be disassembled for cleaning and maintenance using the supplied tool.
• The specified attachment method is direct thread / 1/2-28 RH piston.
• The product is listed with an ATF type of Silencer, ATF model Sidewinder M2, and ATF manufacturer YHM.
• The UPC for this item is 841812101642.

The Sidewinder M2 balances lightweight construction with serviceability: its index system and tool-less piston features are intended to simplify maintenance and point-of-impact adjustments. Whether you prioritize reduced report for extended range sessions or reliable semi-automatic cycling on pistol hosts, this design emphasizes modularity and practicality.

Many users have praised the Sidewinder M2 for its lightweight construction and the modular piston system that allows cross-compatibility with industry-standard pistons.

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