YHM Sidewinder M2 | .45 ACP Suppressor | YHM-2070-28

The Yankee Hill Machine (YHM) Sidewinder M2 is a direct-thread pistol suppressor designed for .45 ACP hosts. It employs a redesigned booster/piston system that accepts industry-standard pistons and permits tool-free piston swaps via an updated rear cap. The unit is user-serviceable: the mono-core baffle and Nielsen (piston) device can be removed for cleaning using the included disassembly tool.

Field-tested features include 12 index points for on-host point-of-impact adjustment and a laboratory-quoted average dry sound signature of 133 dB when measured to Mil‑Std 1474D on a Glock G21 with 230 gr FMJ. Typical applications include range training for shooter hearing protection and competition or precision pistol work where reduced muzzle report and controllability are priorities.

Product Specifications

• The model is Sidewinder M2.
• The caliber is .45 ACP.
• The mount uses a .578″-28 RH piston.
• The outside diameter measures 1.375 inches.
• The finish is Type III Hardcoat Anodized.
• The baffle type is a mono-core, hardcoat anodized design.
• The suppressor is user-serviceable and can be disassembled for cleaning.
• The published average dry sound signature is 133 dB.
• This unit is listed as full-auto rated.
• It can be used on .300 Blackout (subsonic) when paired with a barrel of 7.5 inches or longer.
• The device provides 12 index points to allow point-of-impact adjustment while attached to the host firearm.
• The ATF manufacturer is listed as yhm.
• The ATF model is listed as Sidewinder M.
• The UPC is 841812101659.

The Sidewinder M2 focuses on practical, maintainable performance: a serviceable mono-core baffle, an industry-compatible piston system, and indexed alignment for shooter convenience. Its compatibility with common piston standards reduces accessory friction and the tool-free piston interface simplifies field maintenance. For shooters who value a suppressor that balances low weight, serviceability, and standardized component compatibility, the Sidewinder M2 presents a straightforward option.