Yankee Hill Machine | YHM Carbine Adapter .578-28

This Yankee Hill Machine carbine adapter is identified as the Sidewinder M2 configuration with an explicit thread spec of .578-28. It is finished in black and specified as Melonite for corrosion resistance and surface hardness. The unit is compact and intended for use on compatible carbine platforms where the listed thread and adapter geometry match the host muzzle device.

Applications: attaching compatible muzzle interface adapters on carbines; use in gunsmithing or armorer setups where conversion between threaded devices is required.

Product Specifications

• The product is identified as YHM CARBINE ADAPTER .578-28 – SIDEWINDER +M2.
• The thread spec is listed as .578-28.
• The color is specified as BLACK.
• The material/finish is listed as MELONITE.
• The package dimensions are 1.40 x 3.25 x 5.45 (listed as Dimension).
• The height is listed as 1.4000 (unit not specified by source).
• The width is listed as 3.2500 (unit not specified by source).
• The length is listed as 5.4500 (unit not specified by source).
• The product is described for the Sidewinder M2 configuration.
• The listing includes a shipping restriction: NO DIRECT SHIP TO CALIFORNIA.
• The product category is listed as Class 3 Parts & Accessories.
• The manufacturer is listed as Yankee Hill Machine.
• The model/name is listed as YHM Carbine Adapter .578-28 – Sidewinder +M2.
• The UPC is 841812102342.

This adapter is a concise, application-focused solution when a carbine requires the .578-28 threaded interface that Sidewinder M2 components use. Its Melonite finish and compact profile make it suitable for armorer work and systems integration where a durable, low-profile adapter is needed.