ISMI

Product Details ISMI Premium Extra Power Firing Pin Spring prevents the firing pin from striking the primer when the slide is closed. The heavier spring keeps the firing pin stop from dropping out...

Product Details Also available in 17lb or 19lb. All ISMI Springs are made from silicone chrome instead of 150 year old music wire.Every ISMI spring is heat treated, shot peened & stress relieved...

Product Details This spring is made specifically for Officer's model guns.All ISMI Springs are made from silicone chrome instead of 150 year old music wire.Every ISMI spring is heat treated, shot...

Product Details 22lb. ISMI Flatwire Spring. Works with 10509 Colt Defender KitISMI is a contractor of the U.S. government and produces springs used in machine guns with incredibly high cycling rates...

Product Details ISMI Premium Flat Recoil Springs are used in EGW?s guide rod kit for Springfield and Officer's model pistols. Requires guide rod.All ISMI Springs are made from silicone chrome...

Product Details This spring is intended to be used with 5" Government Model 1911s and 6" 1911s with our 6" Reverse Plugs / Spring Plugs. Not recommended for use with Commander Models without...