5F Freedom Arms Derringer Patriot Model Hammer (Bare) .22 Long Rifle Model 631 Some parts may require fitting

Some parts may require fitting by a qualified gunsmith

Factory replacement parts are manufactured to the same specifications and tolerances as the originals

This OEM magazine catch will restore proper function to your M&P pistol

Part Number: 040710000

5F Freedom Arms Derringer Patriot Model Hammer (Bare) .22 Long Rifle Model 631 Some parts may require fittingPart # 5F Freedom Arms Derringer Patriot Model Hammer (Bare) . 22 Long Rifle Email us or call us for your Smith and Wesson gun part needs! This listing is in full compliance with all rules and regulations related to all firearms and parts. NO FRAME OR RECEIVER, No kits to build a firearm, No Parts or Accessories for Assault weapons. We do not sell any magazine that holds more than 10 rounds. We only ship to addresses is the United States!!