I run a CTR on my carbine and like it very much. Locks up solid and no rattle sounds. If I had the cash, I may think about the Magpul UBR stock; folks seem to like them.
You can’t go wrong with a CTR + Rubber butt pad. I have a UBR waiting at home for me in a box…one Colt has a CTR, the other is getting the UBR.
I have a Vltor Club-foot, also top quality piece of gear. The Rubber pad does need zip ties or 550 cord to stay on- and that sucks. I have facial hair all the time now- and it’s never been caught in the teeth. I think that happened to 1 or 2 people and became an internet legend over night. You can always put a piece of tape over it.
I have 2 SOPMOD stocks coming on LMT lowers but only because I got a great deal on them. If I dislike them, then get sold.
Battery storage IMHO, is not needed. Why would you make your weapon heavier when you can throw batteries in your pack.
Best thing to do is go to a range with people who have the stuff and try it before you buy it…unless you have extra $$.
I had the VLTOR and swapped it out for the Magpul.UBR and have no regrets. This one is solid with no jiggles/rattles/wiggles. It comes with two (2) upper cheek welds(?). Besides, I prefer it without the trap doors. Of course, Your Methods May Vary accordingly so.
Mine arrived filthy and covered in scratched paint, but completely functional. I disassembled it, gave it a detail cleaning, sanded off the old paint, and repainted it in dark earth. Looks awesome now, is solid, has some “character” given its history, and it’s a genuine Colt!