This kit reduces recoil and increases longevity of the spring system in Springfield 4" guns.
If you have a 9mm S&W you will need the kit with the 14lb flat wire spring available here.
The kit includes a 1/4" guide rod, reverse plug and ISMI flat recoil spring.
All systems use a 1/4" guide rod made from solid barstock with a take down hole.
Reverse plugs are Blued carbon steel.
Meant for use in Springfield 4" .45 ACP & .40 S&W 1911’s only. This will work on the Range Officer Compact and Springfield Champion.
Some older model Springfields used a different style reverse plug. Our kit does not work with these older models.
All kits are drop-in.
In independent testing, ISMI spring have endured in excess of 100,000 compression cycles. We don’t recommend going that long between changes however. With an ISMI spring, practice routine maintenance and change it once a year.
This product fits:EMP 4" Lightweight Champion .40 S&W
EMP 4" Concealed Carry Contour .40 S&W
Champion Operator Lightweight .45 ACP
Range Officer Compact .45 ACP
Range Officer Champion .45 ACP
Range Officer Elite Compact .45 ACP
Range Officer Elite Champion .45 ACP
If you have a 9mm S&W you will need the kit with the 14lb flat wire spring available here.
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