Smith & Wesson J Frame Model 37 Airweight Hammer Block Old Style .38 Special Used j60u Upgrade your N Frame with

Upgrade your N Frame with genuine Smith & Wesson precision components

This precision-engineered rear sight assembly features a

and proper ignition

Compatible Front Sight Pins

5" Length: Standard barrel length for M&P 45 Full Size pistols

Smith & Wesson J Frame Model 37 Airweight Hammer Block Old Style .38 Special Used j60u Upgrade your N Frame withSmith & Wesson J Frame Model 37 Airweight Hammer Block Old Style . 38 Special Used (Part# J3710A) This listing is for one used Smith & Wesson J Frame Model 37 Airweight hammer block in the old style configuration. This is an OEM factory part in used condition, removed from a functioning firearm. The hammer block is a passive safety component that prevents the firing pin from contacting the primer unless the trigger is fully depressed. Note: This is