More specifically an Arsenal Inc SLR-105.

Templar has tried to get me to buy one for years but I always resisted. My local shop has one for $450 and lately it's been calling my name.

I haven't been keeping up with 5.45 because I haven't had a need to so what's the scoop on ammo? How hard is it to get nowadays and how expensive? Is it better or worse than
7.62x39?

Oh and pictures are more than welcome