So today I shot the first 2 cases thru my new axe. When I pulled the bolt assembly out when i got home the actual bolt piece (silver) and the spring stayed inside. I tryed to visually look into the back of the gun to see where the bolt was and at that exact time the bolt and spring shot out the back of the gun and smacked me in the eyebrow (drew blood).
The marker was degased. The tank wasn't even on the gun.
Didn't look at guage but the lever was flipped to off and when I pulled the bolt stem out no gas seemed to come out. I think the bolt just stuck for a moment and the spring just shot it back into my face when it randomly unstuck
It was bolt stick and the spring, definitely no air involved because it would've leaked out when you removed the bolt assembly.
My friend had a similiar situation with his Marq the other day haha, it was aired up and he forgot to screw in the back cap so it launched out when he shot and really cut him good! A little higher and it would've wrecked his eye big time.