I bought two Micro Carry Advocates and have had more issues with both guns than anyone should ever go through. I won't go into all the issues, both
guns were replaced early on but continued to have issues with the replacements. Honestly, I could write a book on the issues with the Micro Carry's and internally at Kimber. I'm not trying to bash, heck I bought two of their guns. Good customer service, unfortunately quality hasn't been the greatest.
Fast forward.....a month or so apart, Kimber sent two packages of recoils springs to fix several of the issues in the replacement guns. The first set appeared to work and looked like a normal spring.
Last week I had another recoil spring sent as the other gun was also having issues. Upon receiving the springs, I noticed they were painted Yellow. One of the first Micro's had a Yellow spring and Kimber eventually replaced the entire gun.
Why paint the recoil spring yellow? Second, why would Kimber have two different model springs packaged in the same container with the same part number, SKU, etc? I think the Yellow springs are older, cannot 100% confirm. Has anyone noticed if their recoil spring was painted Yellow?
BTW, the paint does come off. That's got to be great for the internals of the gun. Here are some pics. I have an email into several folks at Kimber asking the difference.