Product Description Coverts HUB Mount to Direct Thread; 1/16"-24 Mounting Threads; .45 Cal Bore; 17-4 PH Heat Treated Material; Black Oxide Finish; Weight: 1.7 oz YANKEE HILL MACHINE HUB 11/16x24 Direct Thread Suppressor Mount (YHM-2189-24B) at GritrSports Browse all GritrSports deals $69.99 In Stock at GritrSports Buy Now at GritrSports Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Yankee Hill Machine Co Yankee Hill Machine Co