Smith & Wesson J Frame Center Pin Nitride Finish Models 331 332 337 342 431 432 - 218820000 z frame The bolt must engage at

The bolt must engage at exactly the right moment during trigger pull and hammer fall to ensure the chamber is perfectly aligned with the barrel and firing pin

Barrel replacement requires disassembly and reassembly by a qualified gunsmith

Goes to the 342-1 Airlite PD matte black titanium revolver

Q: Can I use these with +P ammunition

Smith & Wesson J Frame Center Pin Nitride Finish Models 331 332 337 342 431 432 - 218820000 z frame The bolt must engage atSmith & Wesson J Frame Cylinder Center Pin Part #218820000 Factory new cylinder center pin with nitride finish designed for specific J Frame models. Critical component that secures the cylinder to the crane assembly, ensuring proper alignment and smooth swing out operation. Compatible J Frame Models: Model 331 (. 32 H&R Magnum) 1999 2003 (titanium, Airlite) Model 332 (. 32 H&R Magnum) 1999 2003 (titanium, Centennial) Model 337 (. 38 Special +P) 1999