Elite_Chimp

I just managed to bag a WE Europe F226 from a friend in a trade for my old GoPro camera. It has never been used for anything other than making a short film about 5+ years ago (the f226). The mag seems to hold gas without any leaks, and i've oiled up the O rings and it seems healthy. I am looking to give it a bit of love and make sure everything is ok, I have taken the hop apart and inspected and all seems ok at first glance. I was just wondering if anyone would recommend changing the hop rubber or anything as it's been sat dormant for years, and what hop rubber would be best go get? EDIT: my knowledge on GBB pistols is basically zero, so any advice is appreciated.