I have wanted one of these since they were introduced in 2011. I've had mine about five (5) months now. Mine shipped with the adapter block, recoil spring and buffer. I couldn't find a review anywhere dated post 2012. They were not encouraging. Complaints included failure to cycle and poor accuracy. Either these examples were early production glitches, or I got a ringer. Mine has never failed to cycle, fire or eject. The accuracy is sub MOA with fifties or sixties era 147 gr. military ball. I won't quote an exact group size until I can get some higher quality ammo through it. If you are cons
idering this rifle, I have gotten great service out of mine.