According to Tyler Patner from Pyramyd Air (in a recent post on GTA) factory poppets for the Avenger have recently been upgraded. He posted this particular link for the replacement poppet (should be compatible with most of the guns out of the Nova Vista lineup - Avenger, Aspen/Freedom, Origin, Liberty)
https://www.pyramydair.com/s/a/Seneca_Aspen_Firing_Valve_Complete/9593
A poster on GTA already received his and posted a pic which shows it is, indeed, made with delrin, However, the replacement poppet did not come with a valve spring. Figured I'd post this, since I've experienced a lot of frustration with my Nova Liberty's and opted not to buy an Avenger until a change was made. Might be time to pull the trigger on one now.
https://www.pyramydair.com/s/a/Seneca_Aspen_Firing_Valve_Complete/9593
A poster on GTA already received his and posted a pic which shows it is, indeed, made with delrin, However, the replacement poppet did not come with a valve spring. Figured I'd post this, since I've experienced a lot of frustration with my Nova Liberty's and opted not to buy an Avenger until a change was made. Might be time to pull the trigger on one now.