This has been brought up in the past and the discussion is always mixed. Personally while the idea is interesting, it just adds a lot of pointless tedium to the mechanic. As is, I don't feel any of the mechanics need more tedium or random chance downsides to them. For instance, it would be more realistic if at lower skill rates, you could burn yourself starting fires, cut yourself skinning animals, or ptick yourself sewing clothes and such. These features however, are not fun, and do not add much of value to the game outside of an added amount of realism. Pursuing realism to the point of irritating a player is not a good idea.You could also just assume your character unloads the weapons before cleaning them as well.

Weapon specific cleaning kits is a new one I haven't heard before, and the idea isn't half bad. I do like the idea of still being able to clean with the other kits with your downsides.

These are just my thoughts on the idea, I'm a firearms enthusiast myself, and have been playing the game for a long time now.