YHM-3253 Sidewinder Carbine Adapter | 1/2″-36

The Yankee Hill Machine YHM-3253 Sidewinder carbine adapter allows Sidewinder direct-thread devices to be used on fixed-barrel pistol-caliber rifles and pistols. It installs in place of a spring retainer, spring and piston on compatible platforms to provide a fixed-thread mounting point. The adapter is finished in matte black Melonite and is supplied for 1/2″-36 thread interfaces.

Typical applications include range and competition use where a fixed-thread mounting option is required, and accessory testing or evaluation of Sidewinder-compatible devices on pistol-caliber carbines.

Product Specifications

• The brand is Yankee Hill Machine.
• The part number is YHM-3253.
• The model is listed as Sidewinder Direct Thread Adapter.
• The thread specification is 1/2″-36.
• The adapter fit is specified as Sidewinder.
• The product type is Mount.
• The subcategory is Suppressor Accessories.
• The construction is described as 17-PH stainless steel in vendor text.
• The finish is described as Matte Black / Melonite.
• The listed color is Black.
• The overall dimensions are 1.40 x 3.20 x 5.45.
• The height is listed as 1.4000.
• The width is listed as 3.2000.
• The length is listed as 5.4500.
• The UPC is 816701019674.
• Shipping note: No direct ship to California.

The YHM-3253 provides a straightforward, serviceable solution for adding a Sidewinder-compatible fixed thread mount to platforms with compatible internals. Its compact footprint and matte black finish keep the installation low-profile for range and competition environments while preserving the intended interface for Sidewinder devices.