First choice would be an early 604 version with the partial fence and three prong flash hider. I'm having difficulty finding a photo reference of a windage drum with arrow.... they must be out there somewhere. Meantime I'll be looking around a fairly decent "D" stock but they're getting hard to find at a decent price anymore, but it is what it is. I don't care to much about an original buffer or Waffle mag at this point but will keep the options open if something comes available. For the BCG I may temporarily donate an H&R non-serrated chrome bolt from an H&R USAF Slick Side upper.

That's about it for now - thanks for the interest you guys