- ISMI 1911 Government Round Wire Recoil Spring 16 lbThis 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 ... 10616
$7.95 - ISMI 1911 Mainspring (Hammer) 22 lbAlso available in 17lb or 19lb. These ISMI Springs are made from a stainless alloy instead of 150 year old music wire.Every ISMI spring is heat treated, shot peened & stress relieved to ... 10642
$6.49 - ISMI 1911 Government Round WIre Recoil Spring 18 lbThis 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 ... 10618
$7.95 - ISMI 1911 Commander Flat Wire Recoil Spring 14 lbThis flat wire recoil spring for 1911s fits commander guns with full length, 1/4" diameter guide rods. We also use this spring in our Springfield 4" 9mm kit. The 14lb spring weight is perfect for ... 10658
$8.99 - ISMI 1911 Commander Round Wire Recoil Spring 20 lbThis spring is for a commander gun with a standard diameter guide rod. ISMI is a contractor of the U.S. government and produces springs used in machine guns with incredibly high cycling rates. ... 10662
$8.95 - ISMI 1911 Government Round Wire Recoil Spring 20 lbThis 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 ... 10620
$7.95 - ISMI 1911 Officer's Flat Wire Recoil Spring 22 lbThis flat wire recoil spring for 1911s fits officer's model guns with full length, 1/4" diameter guide rods. We use this spring in our Officer's Guide Rod Kits. The 22lb spring weight is perfect ... 10661
$8.99 - ISMI 1911 3" Flat Wire Recoil Spring 16 lbThis flat wire recoil spring for 1911s fits 3" model guns with full length, 1/4" diameter guide rods. We use this spring in our Colt Defender Guide Rod Kits. The 16lb spring weight is perfect for ... 10664
$8.99