I wonder what is being referred to as AK-47 here? This was a prototype designation for a rifle that was built in 1949. The platform name is just AK, and that could mean anything from AKM (first variant that really became a mass produced service rifle) to AK-74M, and even more modern ones, such as AK-103 or AK-12. Also, what's the origin of the gun in question? Different makes, models and variants were produced by more than 30 countries.. Are we talking about a good quality Soviet/Russian built rifle or a Chinese or Pakistani produced copy? They are not built equal in all regards at all, so if someone served in Afghanistan and picked up one of these knock-offs, then no wonder that person preferred an SKS..