66184B S & W K Frame Model 66 .357 Magnum Trigger .265" Wide Used Part multi-model Model 19 (

Model 19 (

introduced in 1957

Part Number: 1977C

and modern variants like the 638 (stainless Airweight)

66184B S & W K Frame Model 66 .357 Magnum Trigger .265" Wide Used Part multi-model Model 19 (66184B Smith & Wesson K Frame Model 66 . 357 Magnum Trigger . 265" Wide Stainless Steel Old Style Used Part We sell Smith and Wesson Pistol and Revolver used, new old stock, Refurbished and new Parts. Shoot us an email or give us a call about all your Smith and Wesson gun needs USA Guns And Gear. 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