Looking for some input from those with experience. BLUF, I got my SBR stamp back. I have both a 11.5" LMT MRP in 5.56 and a 9" AAC 300BLK upper for the SBR. I also like to hunt with my rifles, so I want to hunt whitetails with the Blackout. We can talk hunting ballistics in another thread, not needed here. Per DNR regs, it's ok to hunt with an SBR but minimum overall rifle length is 26". With an adjustable stock on a "normal" length carbine buffer tube, I'm at 25.5" OAL. Changing to an A5 setup should gain me an extra 3/4" which solves the OAL problem. However, I would prefer to buy one buffer and am wondering what weight to go with. Anyone happen to have experience with the A5 and those two calibers? To muddy the waters even more, what if I want to shoot the Blackout suppressed (not for hunting at least now).