KS190B1 Smith & Wesson L Frame Model 681 .310" Trigger .357 Magnum 14 Round Proper installation ensures correct function

Proper installation ensures correct function and safety

Model 4566 -

Recommend installation by a qualified gunsmith to ensure proper function and safe trigger pull weight

Ejector Springs (2)

KS190B1 Smith & Wesson L Frame Model 681 .310" Trigger .357 Magnum 14 Round Proper installation ensures correct functionKS190B1 Smith & Wesson L Frame Model 681 . 310" Trigger . 357 Magnum Stainless Steel Smooth Old Style Used Part ***Will Not Fit MIM New Style*** Revolver Pistol Gun Part. Please call or email with any questions! How to determine the model number of your Smith & Wesson Revolver. Swing out the cylinder , check behind the yoke on the frame for a MODEL NUMBER. Model numbers began in 1957 58. So if there is no model number then your revolver may be older