YHM Sidewinder Direct Thread Adapter | 5/8X24 | YHM-3250

The Yankee Hill Machine Sidewinder Direct Thread Adapter (model YHM-3250) provides a fixed-thread carbine mount that accepts Sidewinder interfaces using 5/8X24 threading. It installs by replacing the spring retainer, spring, and piston so Sidewinder devices can be used on compatible fixed-barrel pistol-caliber rifles and pistols. The adapter is finished in black and sized for carbine applications. Intended uses include range use and competition where direct-thread mounting is required.

Product Specifications

• The manufacturer is Yankee Hill Machine.
• The manufacturer part number is YHM-3250.
• The model is listed as the Sidewinder Direct Thread Adapter.
• The fit is specified as Sidewinder.
• The thread designation is 5/8X24.
• The color is listed as BLACK.
• The finish is described as Matte Black in source material.
• The material requires verification; see notes for conflicting source information and guidance: see notes.
• The product type is classified as Mount.
• The subcategory is Suppressor Accessories.
• The listed dimensions are 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.
• This item is noted as not available for direct shipment to California.
• The UPC is 816701019421.

This adapter simplifies direct-thread mounting of Sidewinder-compatible devices on fixed-barrel platforms. Its carbine-oriented sizing and straightforward replacement procedure make it a practical option for shooters looking to use Sidewinder mounts in range and competition environments. Verify fit and local regulations before installation.