Yankee Hill Machine Co Phantom QD Adapter, 1-3/8-24, Adapts to YHM 3102 and 4302, Fits Silencerco Harvester 338, Omega, and Hybrid, RMS 2 HOPAII, Rex Silentium, KG Made Rogue X, Energetic Arms Vox, Dead Air Nomad YHM-3060 High quality components and precise manufacturing make Yankee Hill Machine Co. parts ideal for maintaining and upgrading firearms. The durability" reliability and excellent build quality of these parts will ensure years of service you can count on.