Well it finally happened, figured it would with so many of you posting about air leaking past the poppet stem seal, my Liberty has developed a slow leak. I tried sending an email to American Tactical but oddly got no response from them, my rifle will turn one year old just past Black Friday. I wanted to see if they ever got some replacement poppets from the manufacturer, but Just silence from them, kinda disappointed by their lack of response. My question to you all is if someone could turn down and drill a piece of Delrin rod I have into a couple of spare inserts for the can on the poppet stem of my rifle. I'm not expecting it to be done for free and I will supply the rod, I just don't have the lathe to turn it down and drill it myself. I believe I saw a post about the dimensions on this thread or another. I plan on doing the repair myself to remove the poppet and install the new seal, just need someone who can machine it. If someone is able, please IM me with a price and an address and I will send the rod to be machined. Thanks for listening, just wish American Tactical would about getting some parts support.