a semi auto is just anormal gun but the valve closes before all the air escapes so you can have another shot,depending on the size of your chamber and the pressure you charge your gun to, you will get more shots.
Look through the Pneumatic Cannon Showcase and find the topic "Semi-Auto" by clide. It has a diagram and animation of a simple, easy, bolt-action paintball gun.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You can download files in this forum