Actually I own AR15, AR10, and of course my Russian Nagant 7.62X54R. I love this rifle and ammo, one thing that it calls me the attention is that most of you guys are saying is in regard to " Corrosive Ammo " let me clarify this that there's a Non-Corrosive Ammo in the market too. I do have in stock about 900 rounds and about 400 rounds of them are from about 20 years ago and they still damn good to be fired. I had the same idea to produce an AR to fire this ammo and even I called AR54. AR54 it's easy to build and will be priced same as the AR10 due to the facts that you use the AR10 frame with a different Chamber 7.62X54R. I took this idea to gunsmiths but it's hard to find someone who think out the pot.