I got to play with one today at the local store when I got off work early... Unfortunately, they were all sold out (this one belonged to a customer that hadn't picked it up yet), or I would have brought one home... I'm pretty sure it will be my next rimfire/pistol purchase. The one at the store had a Holosun HS507C-X2 on it, which is the exact same as what I have on my Springfield Armory Saint Victor 7.5" 5.56 pistol. It was a REALLY nice setup! I'm pretty sure that's exactly what I'll do with mine, as well.