While having an AKM in your hands, drinking from a well will duplicate the magazine in your AKM. None of my other mags disappeared from my inventory or weapon.

Unsure if location or attachments are affected; however, I was drinking from the well in northwestern Novo. My AKM attachments are AK folding buttstock (pristine), AK handguard rail (pristine), ATLAS bipod (pristine), and 30rnd Mag (pristine).