This is a brand new gun in the factory shrink wrapped case.
I bought it as a "spare" probably 8-10 years ago but my identical one that I use regularly still shows no sign of wear or failure. I'm slowing down, approaching retirement and I'm certain that mine will outlast me - this one can go.
Since it is still in the factory sealed case, I've included two pics of the one I use regularly - they are identical.
These use the Tiger Claw stainless steel clips that have "teeth" that keep the boards from moving side-to-side, unlike the plastic "universal" ones commonly used.
It uses collated "scrails" - screws that are driven straight in by the gun but will unscrew if needed.
Here's a link to the exact same item on the decksdirect website; https://www.decksdirect.com/tiger-claw-gun.html?
I do still have at least one full bucket of the fasteners, they are not included but I'm probably about ready to let them go at a very reduced price as well.