Semi-automatic gun

摘要: A gun for firing pellets using compressed gas having a breech, hammer mechanism slidably mounted in the which includes and spring to drive forwards when is fired, trigger pivotally connected breech. sear device front rear end on pin biases so that thereof pivots downwardly after released. This detent end. small move forward position order be engageable by trigger. The valve of about extends an elastomeric bumper. bumper reduces shock loading top frame gun.