Ask the Community

John, thread pitch is Threaded (.578" x 28) / 1:16 Twist Sir. ----- https://www.springfield-armory.com/products/xdm-4-5-full-size-45acp-threaded-barrel/

John, .578x28 is the most common thread for .45 cal weapons. That holds true for this pistols threaded barrel also.

Simply put, 578x28.