Yankee Hill Machine | Sidewinder Adapter 5/8-24 | YHM-3250

The Yankee Hill Machine Sidewinder Direct Thread Adapter (YHM-3250) provides a fixed-thread mount that allows Sidewinder muzzle devices to be used on fixed-barrel pistol-caliber rifles and pistols. This adapter replaces the spring retainer, spring and piston for a fixed-thread installation and is supplied with a black finish. Thread pitch for the unit is listed as 5/8X24.

Product Specifications

• The manufacturer is Yankee Hill Machine.
• The model is Sidewinder Direct Thread Adapter.
• The manufacturer part number is YHM-3250.
• The adapter thread is listed as 5/8X24.
• The fit is reported as Sidewinder.
• The product type is Mount.
• The subcategory is Suppressor Accessories.
• The listed dimension is 1.40 X 3.25 X 5.60.
• The listed height is 1.4000.
• The listed width is 3.2500.
• The listed length is 5.6000.
• The color is listed as Black.
• The finish/material is reported as Melonite and matte black (sources conflict).
• The UPC is 816701019421.

This adapter provides a straightforward solution for converting fixed-thread pistol-caliber platforms to accept Sidewinder devices, useful for range work and competition where a reliable, direct-thread mounting interface is required. Its simple design emphasizes function and repeatable alignment with compatible Sidewinder components.