Mine all look like the one in the middle, and I believe all of them need to be properly staked. Based on your chart, I guess my 2 Stag uppers don't have the proper extractor springs in them either. I've already ordered those. I'm still going to order an M16 BCG from Larue for my Stag upper that I'm running on my LMT lower. At least then I'll have a BCG for when I finally get my LMT upper. Will the pocket MOACKS be enough for what I need to do, or should I order the regular one?

