Broke after 6 months of ownership 5 of which are in storage So I've used it literally 4 times Warranty is one year but amazon doesn't want anything to do with it and the seller doesn't respond.**Update.seller finally replied a few days later and said there was no guarantee. An obvious contradiction. BUT. recommended to send replacements as soon as they are in stock. I will update as soon as it comes out. It seems that due to improper sealing of the O-rings in the product, air is leaking around the trigger.