I went in there today. I forget the name it was on Route 20 just a little bit East of Avon next to the Castile Bank which is across the street from the Topps market. Nice little place, no doubt, and I liked the atmosphere there much better than at the Buffalo Gun Center. Buffalo Gun Center has a great selection, but it's too...I dunno...too formal.
This place was cool...people hanging out there and chatting, low pressure. They had very few new guns but had a good selection of used guns that you could just pick up and play with--they weren't chained to the rack or anything. The help was quite friendly. They said they don't have many new guns, but they'd be happy to special order anything new that you want.
As for black rifles, I don't remember seeing any ARs or anything, but they had several FALs on the wall and some of those Russian "sniper" rifles (Saiga or something?) as well as a couple SKSes and probably some other goodies that I don't remember right now. I'll definately be going back there next time I'm in Avon.
-Nick Viejo.