The way the barrel is mounted low in the frame makes this a great firearm to suppress. Even with a larger diameter suppressor you can still use the factory sights. The CNC adaptor is made from 303 Stainless steel and may fit other S&W models that have the same type of factory barrel nut as the 422, 622, 2206(pictured), 2213, and the 2214. External threads are single point cut, standard 1/2"x28. Thread protector included. Please add $5 for insured shipping. MO, personal Ck(held until clear) and PayPal(add 4%) accepted. Have questions, please send me an e-mail as I don't always notice I have PMs.
Thanks for looking.