Best assault rifle upper?

[Eurodriver]

Looking to put an upper on my new assault rifle and wondering if the market has come out with any doozies in the last 5~ years?

Specifically the barrel, but wondering if there are other considerations such as gas port size. I’m assuming any quality CL CMV barreled upper would suit but figured I’d ask.

Ranges would be moderate at best but muzzle control and reliability are paramount.

[Outlander Systems]

An assault rifle?

Say no more:

https://fightlite.com/mcr-556-dfr

[Bellycrawl]

That looks more like an improved sporting rifle.

[everready73]

I think some guy here named Batman ran a Colt 6920 over with a 4runner. It is all you will ever need

[1168]

6920
6720
6933

ACOG or Aimpoint

Pick one and pair with a G19.

All you could ever need. Make sure you shoot them in a hurricane.

If you can’t find one of those, just get a Bear Creek Arsenal. Its all the same.

[HKGuns]

Please define “assault rifle.” This makes zero sense and I suspect this account has been compromised by some communist punk.

[Inkslinger]

Euro is off his meds again.

[Outlander Systems]

An assault rifle is a selective fire rifle that uses an intermediate cartridge and a detachable magazine.

Please define “assault rifle.” This makes zero sense and I suspect this account has been compromised by some communist punk.

[markm]

Euro is off his meds again.

Yep! About time too! This sites greatest conversation lately is fukking grip screws. I'll take cuckoo bird over that retarded crap all day long!

[Five_Point_Five_Six]

Yep! About time too! This sites greatest conversation lately is fukking grip screws. I'll take cuckoo bird over that retarded crap all day long!

And not just one, but *two* threads about grip screws.