Remove the regulator and inspect the lines for little pieces of teflon tape. They can get stuck in the passages and completely shut off you air supply.
What you are doing is only using the air in the hose. 1-2 seconds worth of air. As you are reducing the pressure in the tank the obstruction (Possibly Teflon tape) is clapping shut.
I've seen this happen more then once.
Originally Posted by ar15barrels
The above statement i consider a term of endearment
Originally Posted by tujungatoes
That guy is a hack. He worked on one of my ak's and now the damn thing only shoots .50 cal bullets.
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