I was told by Vietnam veterans that Viet Cong fighters used old TOZ 5.6 mm plinkers as weapons of close combat and sniper rifles successfully deployed in towns. They said, such rifles were compact, accurate at close ranges. Fire tests of SV-99 . A few days ago I was able to thoroughly examine the SV-99 rifle. Once the bolt is in battery, it cannot be unlocked without applying a side shoulder of the cocking lever.
Stock is made from laminated plywood.
A knob located on the rear left side of the barrel and receiver assembly serves to release the stock and attach the grip. This shorter envelope is handy in a combat at close ranges. The safety lever is located at the front part of the trigger guard. Once the safety is in its rearmost position, the rifle is deactivated by blocking both action and trigger. To bring the rifle into firing order, push safety forward.