Make low quality guns do low quality damage , misfire , blow up in your face , jam or shoot yourself in the leg putting it away or drawing it out. make them non repairable if they're below yellow. Much better option than making them impossible to find while also Making finding a good one harder and worth it.I'd like to make it a lot more difficulty/impossible to find firearms the first 10 levels or so. You could find broken ones and salvage the parts to craft one early game.
Same could be done with everything else low quality. Cheap tools break all the time right? head breaks off your cheap stone tools. Handle breaks off your hammer etc.
Things to think about.
-IPWT-