Features 1. Fitment: This adapter is designed to fit S W, M P22 (does not fit M P Compact), Walther P22, and other devices with M8x0.75mm threads. 2. High-Quality Material: Constructed from durable metal material for long-lasting performance. 3. Function: Equipped with two flat ridges for easy installation or removal using a wrench. Includes a 1/2-28 thread protector for use when no accessory is attached or for storage purposes. 4. Wide Compatibility: Compatible with various accessories that feature M8x0.75mm threading, allowing use with widely available market options. 5. Precision Craftsmanship: Thread protector features a diamond knurled design and is made from high-carbon steel with a black oxide finish for enhanced durability. Specification Item Type: Thread Adapter Material: Metal Pipe End Thread: M8 x 0.75mm Adapter OD Thread: 1/2-28 Overall Length: Approximately 1 in (25.4 mm) Largest Diameter (with protector cap installed): 5/8 in Package List 1 x Thread Adapter