I was never a fan of the A2. The three round burst feature being the final indignity. I preferred the terminal effects of M193 ball from 1:12 twist barrel to those of of M855 out of a 1:7. Don't know about M855A1, except what I've read. But I will agree on the M68 and PEQ. Having used an AN/PVS-2 mounted on an M16A1, I can appreciate how much better things are at night.

While I spent most of my serious doing business time mounted, with a 90mm (or larger) option. I saw the rifle as only needing to cover to 300 meters max, most of the time. Beyond that, unless they somehow discovered my location, I preferred the PTT on the PRC-77 and a battery six of VT fused i55 HE to sufficiently convey my displeasure.