Two weeks ago:
Complete Magpul furniture lower.... blem (but I can't find the flaw) $149.
Magpul furniture upper, complete with BCG/CH. $269.
Amazon has rear sights for 24.99 from UTG. Easy on the wallet, and as good as the full handle i.e. M16A2 style.
Total in the gun.... and I'm not adding it up... I'm guessing..... $425-455. The quality is better than the Smith and Wesson 15. I've built a couple in the past from scratch. I cannot build it for this price, and the PSA quality is good. I would NOT buy the PTAC product from PSA. I've not seen it, but I've also not heard good things about them. My PSA products go bang every time!
Da