Usage Tips:Feature:1. Installation: adapter is a replacement for SW, for M P22 does NOT fit MP Compact, for Walther P22. And other tubes with M8x0.75mm thread. 2. material: Made of durable metal material, which is durable and has high strength for long time use. 3. Function: The adapter has two flat ridges for mounting or disassembling with a wrench and includes a 1/2-28 thread guard for use without accessories or for storage. 4. Wide adaptability: This product is also suitable for other M8x0.75mm threaded pipes, which use many readily available accessories on the market. 5. Good build quality: The thread guard has a very fine knurled diamond and is made of high carbon steel and finished with black oxide. . M8x0.75mm to 1/2-28 threaded pipe adapter . M8x0.75mm to 1/2-28 threaded pipe adapter . M8x0.75mm to 1/2-28 threaded pipe adapter Specification: Item Type: Thread Adapter Material: metal Pipe End Thread: M8 (8mm/0.31 inch) x 0.75mm/0.03 inch Thread From Adapter: 1/2-28 Overall length: approx. 1 inch / 25.4 mm Largest diameter (with protective cap installed): 5/8 inch . M8x0.75mm to 1/2-28 threaded pipe adapter . M8x0.75mm to 1/2-28 threaded pipe adapter . M8x0.75mm to 1/2-28 threaded pipe adapter Package List:1 x Thread Adapter . M8x0.75mm to 1/2-28 threaded pipe adapter . M8x0.75mm to 1/2-28 threaded pipe adapter . M8x0.75mm to 1/2-28 threaded pipe adapter