66184B S & W K Frame Model 66 .357 Magnum Trigger .265" Wide Used Part k3906n Compatible Models: Model 317

Compatible Models: Model 317

38 Special Blue steel

Also fits M&P 1

Essential for protecting internal mechanism

66184B S & W K Frame Model 66 .357 Magnum Trigger .265" Wide Used Part k3906n Compatible Models: Model 31766184B 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