The Five Stone Tactical Direct Thread Mount is a direct thread suppressor adapter designed for firearms utilizing the industry-standard 1.375x24 Bravo (HUB) suppressor interface. Precision-machined from 17-4 PH H900 stainless steel, the adapter is offered with 1/2x28 or 5/8x24 thread pitches to accommodate a variety of rifle platforms. Its direct thread design provides a straightforward mounting solution for compatible HUB-equipped suppressors. Features1.375-24 Bravo Thread Size Suppressor InterfaceAvailable in 1/2-28, and 5/8-24 thread sizes3/4" Wrench FlatsWeight 2.3 oz