I’ve contacted them through their website with zero response. I’ve place a couple of orders recently and found them to be relatively slow. Having placed two orders with them relatively close apart, I’m still waiting to receive the first order. I would think twice before using them again.
I get this with mine. Wolverine suggested installing new battery. Haven’t tried it yet. They also said the first shot (after a long pause in use) is meant to fire harder to avoid sticky nozzle or words to that affect.