5F Freedom Arms Derringer Patriot Model Hammer (Bare) .22 Long Rifle Model 631 This mainspring fits all Smith

This mainspring fits all Smith & Wesson J Frame revolvers

357 inches

Frame Type: Square Butt Only

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

Some parts may require fitting by a qualified gunsmith

5F Freedom Arms Derringer Patriot Model Hammer (Bare) .22 Long Rifle Model 631 This mainspring fits all SmithPart # 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!!