Air leaking out the vent hole was the problem I had on the gen 1 DAR two years ago, this is the first one I've read about on a gen 2, hope it's not a pattern. For those with poppet/valve problems on the Avengers, many of us here and on the GTA expressed our concerns about this, I even went so far as to email Air Venturi about the problem before Rifles were released to the public, never received a response from them. If they knew about the issues on the Nova Liberty's, and on their own Aspen before production began, they chose to just ignore the problem. Same with the regulator creep issue, now they're gonna have to address these problems or face mass returns and loss of sales. I hope they show the same concern that Aim Sports did in trying to resolve manufacturing issues on the DAR's.