Fix one of the most common problems with your Colt Defender. Our one piece guide rod is the perfect replacement for the stock guide rod. Our Colt Defender guide rod is a one piece design and is fully machined in the USA!

This kit reduces recoil and increases longevity of the spring system in stainless steel .45 Colt Defenders and other similarly sized guns.

This guide rod kit is for 3" 1911s chambered in .45 ACP.

This kit fits:
Colt New Agent
Colt Defender
Kimber CDP
Kimber Ultra Carry
Magnum Research MR1911 3"
Para LDA Carry
Para Warthog
Springfield Micro Compact .45 3"
STI Elektra
ATI FX45 Fatboy

All systems use a 1/4" guide rod made from solid barstock with a take down hole. This kit includes a guide rod, reverse plug, and ISMI flat recoil spring.

This reverse plug is Stainless Steel.

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.


Warning: This product may be alloyed with trace amounts of lead and other elements which are known to the State of California to cause reproductive harm and cancer. To prevent exposure, do not alter the product by welding, grinding, etc. For more information, go to www.P65Warnings.ca.gov.