half built guns?

i recently started playing SPT again after several month break and noticed that a lot of bosses, raiders and serval other AI spawning in with weapons that are like the picture. i fought the goons serval times in the past few days and they all have guns like the one in the pic. the only functioning guns they have is bird eye's sniper and big pipe's GL same with any boss with guards. the only AI i haven't checked to see if its the same was rouges.