The BRG-15 had conventional, gas operated action with rotating bolt, locking into the barrelextension.
该担心现有- 15接受传统,燃气经营与旋转螺栓行动,延长锁入桶。
2
In this action bolt has two frontal lugs that engage the barrelextension, which is screwed onto the barrel.
螺栓在这次行动中有两个是从事前沿耳桶扩展,这是到每桶拧。
3
By using the finite element method, the dynamic stress caused by vertical contact impact between bolt locking surface and barrelextension locking surface of a new rifle was studied.