Yeah, aside from being extremely non user friendly, crafting basic weapons is not cost effective. I suggest some simplification, especially for modifying recipes, because some already require special components. Why do we have to count metal parts and junk by hand, if there can be weapon modification kit to make a RPK from AK-47? Or PSG from G3? Seems to be more logical than using junk for that. If drop spawn rate will be same as it is for scopes, capacitors and drums it will be awesome.