upper receiver question

[db3443]

I've read alot about good uppers, but which ones should I definetly stay away from? I will be using it on a Bushmaster lower. Thanks for any info!

[JE3146]

Stay away from Hesse/Vulcan.

Anything from RRA, Bushmaster, Colt, Stag, DPMS, and possibly even Oly Arms will suite you well.

Other options include JTDistrubting, and Model 1 Sales.

[db3443]

thanks for the heads up, I didnt know hesse/vulcan were that bad.