I played with one of these a long time ago. Very accurate for a gas gun and soft recoil. Would have made a fantastic coyote gun but for one thing, the thumbhole stock.
I wanted very much to like this rifle but that stupid thumbhole grip is completely the wrong size for my hand. I had to break my grip and rotate the rifle to operate the controls. It's too bad HK never ditched the thumbhole and put a proper pistol grip on it. Would be a complete game changer for me.
100% agree with the soft recoil and accuracy. I was very surprised by how little recoil there was (not that .223 rounds have big recoil anyway, but I immediately noticed a substantial difference in recoil levels between that and my WK and Tavor). Accuracy out of the box was also excellent.
As for the thumbhole thing - it is fine for me but I agree with you that for people with different sized hands, having that fixed sized thumb hole may be a detriment.


















































