I really like that many PCP airguns sport AR grip now. The grip are easy to obtain, are fairly cheap, and most are (almost) indestructible. My favorite polymer ar style grip for some years has been the Magpul moe grip. In fact before I decided on these I was going to toss a grip on this rifle from my junk drawer. But since I own a CZ 75 PB and love the grip, I ordered a CZ Shadow 2 grip adapter and tossed some G10 grips on the Vixen. I'm a big fan of the G10 grips tackiness, and I figured the rifle might be better off with something like these since it's a very cool little PCP. AR grip adapters are usually 1911 copies as many people like the grip and feel of the 1911 (me included) But I LOVE CZ 75 and variants grip. I got this grip adapter from Driven Arms and it's built very well. There are a lot of options out there. Just leaving this out here as food for thought if anyone likes this kind on thing.