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。
The BRG-15 had conventional, gas operated action with rotating bolt, locking into the barrel extension.
锁通常由一个滑动，无所不能，或由一个旋转螺栓固定或可移动的物体的保护。
Locks typically consist of a sliding, pivoted, or rotary bolt protected by a fixed or movable object.
这是小斗犬的布局，并利用最传统的气体操作，旋转螺栓锁行动与可拆卸弹匣喂养。
It is of bullpup layout, and utilizes the most conventional gas operated, rotating bolt locked action, with detachable box magazine feeding.
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