Picatinny scope mount test dummy

**Trying to google and measure what build height your next pair of scope rings need to be to fit over your barrel? **Print these instead, mount with rubber bands, and measure the gap!

These dummy 'rings' have a build height of 15mm. I have used them on picatinny rails, but they might work on Weaver rail as well.
1. Print either the 1" or 30mm thing.
1. Mount your scope in the dummy rings.
1. Measure the distance between scope/bell and barrel.
1. Subtract that distance from 15mm.
--> The result is your minimum needed build height.
_Remember to add a few millimeters if you intend to use external scope caps!_