Product Description Fits YHM's Sidewinder, Sidewinder M2 and Cobra M2 suppressors; Made from 17-PH Stainless Steel; Length: 3/4"; Weight: 1.86 oz; Finish: Matte Black; Made in the USA YANKEE HILL MACHINE Sidewinder 1/2x28 Direct Thread Adapter (YHM-3251) at GritrSports $30.99 Buy Now Check Price on Amazon Check Price on eBay