RADICAL FIREARMS - looking for recommendations

[MrFiveDime]

I am highly interested in a Radical Firearms AR15 rifle, but am unsure of which model to go after. I have no experience with the AR platform.

1. standard 5.56
2. 300 Blackout
3. 7.62 x 39 (piques my interest)

I currently own a un-fired IO M214 which I plan on selling and have already begun stocking up on 7.62 x 39 rounds,so I dont want them to go to waste. They seem to be the least expensive round, so I'm leaning towards that model. I live in California.
Any recommendations on which caliber/model and why? Thanks in advance!

[javithewrench]

For an ar I'd start with 5.56 if you want 7.62x39 go ak

[CMBrowning]

Its pique, not peak.
I have an RF upper in 7.62x39. Its nothing to go crazy over. I enjoy it and have had no issues.
Im sure you would be happy with either caliber in your case. Although x39 ar mags can be hard to come by.