I guess you don´t need high tolerances when the guns are going to be used by untrained troops. Just an example I recently saw a Nigerian policeman walking with

I guess you don´t need high tolerances when the guns are going to be used by untrained troops. Just an example I recently saw a Nigerian policeman walking with his Ak47 on his hand, using it as a walking stick. The Ak was doing the distinctive noise of a metal bar hitting the ground hard. As the Ak didn't have muzzle brake that could protect minimally the barrel, I guess there is not much accuracy left in that barrel. If that happens in the middle of an international airport, I can not imagine how they are maintained and used in the middle of the jungle.