Hello! I don't often play idle games, but this one was quite fun. I particularly like the graphics for the guns themselves!
Anyways, I just wanted to point out a bug you may want to look at. If you're upgrading your Runes and you put a single skill point into a rune that requires a second skill point (for example, the bottom left 'Cost Reduction' under pistols) and you close the Runes tab, you will be unable to add the second skill point to the skill.
Other than that, thanks for making a fun time-killer!
 "Gun Range Idle"){kind=icon}
I will look into that, thank you.