The Gemtech 22 QDA Thread Mount is a precision-engineered muzzle device designed for 22 LR firearms with 1/2-28 threading for reliable suppressor attachment.Gemtech 22 QDA Thread Mount in Black1/2-28 threading for standard rimfire barrelsFour-lug muzzle device designMaximum compatibility with rimfire threaded barrelsSuppressor accessory for quick detach systemsEssential for shooters using Gemtech QDA suppressor systems this thread mount provides secure repeatable attachment on rimfire platforms for consistent performance and accuracy.