Description

The Yankee Hill Machine (YHM) Sidewinder M2 is a direct-thread pistol suppressor designed for .45 ACP hosts. It features a redesigned booster/Nielsen piston system that uses the industry-standard piston form factor and allows piston swaps without tools via a threaded rear cap. The unit is user-serviceable; the baffle stack and Nielsen device can be removed for cleaning with the supplied disassembly tool.

Key Specifications

• The suppressor is chambered for .45 ACP.
• The mounting uses a .578×28 RH piston direct-thread mount.
• Construction includes an outer tube of aircraft-quality 6061-T6/7075-T6 aluminum with internal components of 17-4 PH stainless steel.
• The outside diameter measures 1.375 inches.
• Average dry sound signature tested to Mil-Std 1474D is 133 dB (measured on a Glock G21 with 230 gr FMJ).
• The suppressor is full-auto rated per manufacturer materials.
• User-serviceable design allows removal of the baffle and Nielsen device for maintenance using the provided tool.
• Features 12 index points for adjusting point of impact while the suppressor remains attached to the host firearm.
• Compatible with .300 BLK subsonic ammunition when used on barrels of 7.5 inches or longer.

The Sidewinder M2 combines a lightweight materials package with a tool-less piston swap capability and a serviceable mono-core baffle, making it practical for users who prioritize ease of maintenance and reliable semi-automatic function. Its indexed mounting and Nielsen piston design help preserve function and point-of-impact control across compatible hosts.