Hi Guys, I hope you don`t mind me coming in on this, But the gun he says was firing ok ?? then it just stopped the way it did, I personally think it`s a simple oversight that shows the same symptoms if not done = have a look at the back cap of the Bolt itself,at the back of the gun, on the allen key adjuster, screw it all the way out, there is an " o " ring there, which needs lubing ,
It gets dry and stops the gun from working.
I`ve found most people that has an Axe didn`t even know it was there, after lubing , I`ve got going every AXE I`ve had back to normal.... or the battery ?? .. bluey