I had the gen 1 in 0.22
And i payed 499 euro for it , worth every cent
Never leaked , shot as good as my fx royal 300 but was a bit on the heavy side , the supplid extra o-rings : rather crapy ( never neaded them)
Hamerspring was easy to adjust , regulator worked flawless
I see some extra's on this gun , second gauge ,adjustable butpad , picatinny rail
Ps ; that's a tool to remove the frist gauge so you can acces the regulator