+1 for most all as mentioned above. Mainly the small stuff.....brass and metal punches up to 1/4 inch. Maybe a sight press? Cleaning supplies, Leatherman MUT, AR15 tools, micrometer, and precision hand tools from brands like Starret. Just keep everything quality is the main thing, and most of the precision hand tools can be used for other stuff besides guns. I don't know how many times I've gone to the hardware store looking for something only to find cheap, bargin bin stuff. Good luck!