Jeffrey, I have both. There's scant difference between the two, except that the Bravo seems to fit my Colt buffer tubes tighter. Weight isn't a big deal for me. I've bought and sold different stocks and would go with -B5 -BCM -Magpul In that order. (And I prefer the Bravo to both the BCM and SL, and prefer the SOPMOD to the Bravo because I have a huge head and it has a huge cheek weld). The BCM has an interesting cheek weld that I personally appreciate more. Preference is all that will make you feel otherwise. The BCM is clearly more thought out and a better deal. Note: The BCM stock is a modular stock that will be adaptable with future products BCM plans to offer.

Jeffrey, You could get 10 different answers from 10 people. I like the BCM strictly because it is easier to get a cheek weld to see your optics and just a better quality stock.