ISMI Springs

ISMI 1911 Mag Catch Spring

Product Details If your pistol is more than 15 years old, you might want to consider replacing this often forgotten spring to ensure your magazine remains in your gun while firing. All ISMI Springs are made from silicone chrome instead of 150 year old...

ISMI 1911 Mainspring (Hammer) ISMI 19 lb

Product Details 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 to enhance durability, consistency and reliability. ISMI...

ISMI 1911 Mainspring (Hammer) ISMI 17 lb

Product Details 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 to enhance durability, consistency and reliability. ISMI...

ISMI 1911 Government Round Wire Recoil Spring ISMI 20 lb

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 removing multiple coils.ISMI's proprietary design features...

ISMI 1911 Firing Pin Spring Premium

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 during firing. All ISMI Springs are made from silicone...

ISMI 1911 Mainspring (Hammer) 22 lb

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 to enhance durability, consistency and reliability...

ISMI 1911 Government Flat Wire Recoil Spring 20 lb

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 instead of 150 year old music wire. Every ISMI spring is heat...

ISMI 1911  Commander Flat Wire Recoil Spring 22 lb

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 instead of 150 year old music wire. Every ISMI spring is heat...

ISMI 1911 Commander Flat Wire Recoil Spring 14 lb

Product Details For 9mm Springfield 4"ISMI is a contractor of the U.S. government and produces springs used in machine guns with incredibly high cycling rates. Also, the creator of ISMI springs obtained his knowledge from extensive research in the...

ISMI 1911  Government Round WIre Recoil Spring 1911 18 lb

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 removing multiple coils.ISMI's proprietary design features...

ISMI 1911 Government Round Wire Recoil Spring ISMI 14 lb

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 removing multiple coils.ISMI's proprietary design features...

ISMI 1911 Government Round Wire Recoil Spring ISMI 11 lb

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 removing multiple coils.ISMI's proprietary design features...