The mainspring controls hammer tension and directly affects trigger pull weight and smoothness
How to Find Your Model Number:Swing out the cylinder and check behind the yoke on the frame for the model number
Note: This part is also commonly referred to as an ejector assembly
Stainless Steel (Part# 681157B)
This cylinder is specifically fitted for the 2½" barrel length and is not interchangeable with 4" or 6" barrel configurations
S&W K Frame Target Hammer .500" Wide Spur Case Hardened Old Style NOS 043760000 k16n The mainspring controls hammer tensionSmith & Wesson K Frame Target Hammer . 500" Wide Spur New Old Stock (NOS) Old Style with Firing Pin Factory case hardened target hammer for Smith & Wesson K Frame revolvers. This old style hammer features an integrated firing pin and a wide . 500" spur for improved cocking leverage, ideal for target shooting and competition. Specifications: Part Number: 043760000 Frame Size: K Frame Compatible Models: 10, 12, 13, 14, 15, 16, 19, 64, 65, 66, 67 Spur