Hajimemashite ! Welcome aboard ! Lived in Nara City a few clicks out of Osaka a couple of years during the Korean thing. Loved it but only guns I had were unloaded M1 Garand and Colt 1911.....
Welcome home to TEXAS and owning and shooting. Guns right now are high as an angry cat's back but you can look around and still find deals.
Some are building their own ARs.....
Welcome aboard. I bought my Saiga .223 a few weeks ago, put several round there her, the proceeded to the conversion. This is been my favorrite of any rifle I have ever shot. However, I have never shot an AR15.
If you have not considered the Saiga, do some searching.