Infinite Product Solutions M8 x .75 to Thread Adapter Black. 75 to 1/2-28 Thread Adapter from Infinite converts your smaller M8 x .75 threads to US industry standard 1/2-28 threads unlocking your barrel's potential with the ability to mount a variety of muzzle devices. This adapter extends your barrel past your slide for easy access. Precision manufactured from durable steel with a black oxide finish it ensures reliable performance and a secure fit. Enhance your firearm's versatility with this essential accessory from Infinite. Specifications for Infinite Product Solutions M8 x .75 to 1/2-28 Thread Adapter: Manufacturer: Infinite Product Solutions Color: Black Finish: Oxide Fabric/Material: 4140 Steel Threads per Inch: 1/2x28 Gun Make: AR Platform Walther Colt Smith & Wesson Gun Model: Walther PPK/S Colt Gold Cup Trophy Colt 1911 Walther P22 AR-15 Smith & Wesson M&P 22 Weight: 0.64 oz Gun Type: Rifle Height: 0.62 in Width: 0.62 in Length: 0.89 in Caliber: .22 Long Rifle Features of Infinite Product Solutions M8 x .75 to 1/2-28 Thread Adapter Convert smaller M8 x .75 threads to suppressor-ready 1/2-28 threads Unlock your barrel's potential with the ability to mount a variety of muzzle devices Extend your barrel beyond your slide for access to barrel threads Precision manufactured Ensures reliable performance Secure fit Enhances firearm versatility Package Contents: Infinite Product Solutions M8 x .75 to 1/2-28 Thread Adapter x1 1/2-28 Thread Protector (Pre-installed) What firearm models does the manufacturer say Infinite Product Solutions M8 x .75 to 1/2-28 Thread Adapter is compatible with? The manufacturer suggests that Infinite Product Solutions M8 x .75 to 1/2-28 Thread Adapter is compatible with Walther PPK/S AR-15 Walther P22 Colt 1911 Smith & Wesson M&P 22 Colt Gold Cup TrophyInfinite Product Solutions M8-1228: M8 x .75 to 1/2-28 Thread Adapter Black