• Overall Length: 3.052"
• Rod Diameter: .25"
• Guide Rod Material: Stainless Steel
• Reverse Plug Material and Finish: Blued Carbon Steel
• Recoil Spring Type: 14lb Flat Wire Commander Spring for 9mm [ISMI Spring]
• This kit reduces recoil and increases longevity of the spring system in Springfield 4" guns.
• If you have a .45 ACP or .40 S&W you will need the kit with the 22lb 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'' 9mm 1911's only.

This kit fits:

• EMP 4" Lightweight Champion 9mm
• EMP 4" Concealed Carry Contour 9mm
• Range Officer Compact 9mm
• Range Officer Champion 9mm
• Range Officer Elite Compact 9mm
• Range Officer Elite Champion 9mm

All kits are drop-in.