Tinker

You know you're tinkering too much when you need a log book to keep track of what parts from whom are in which gun.

It's not a log book, it's a spreadsheet, but same thing.

I've got one for my AR's, and you can tell from my Histories of Kaylee and Dottie, I tinker.

The retro guns are almost as complex in the tracking because parts have slowly been replaced by bits that are more accurate to the recreation.