Mr. Blasty Update
Because I was contemplating getting one of these (still am), I decided to get a new upper receiver for Mr. Blasty. I met a fellow AR guy on AR15.com and traded the 7.62MM upper and mags for a light weight 5.56MM upper and some mags. I dig it. That light weight barrel is amazing. I bet the thing weighs less than 7 pounds. Pics later.
