Noveske 10.5 Mod 0?????

AR/M4 AR Technical Discussion
1

Ran across a 10.5" upper that I was thinking about buying. The description says it is 5.56 match Mod 1 chamber. i have noticed a LOT of other uppers say they are mod 0. This leads me to believe maybe I don’t want the mod 1 chamber.

Can someone explain to me what the mod 1 and mod 0 means? I’ve searched the web and can’t really find anything. I’m guessing this has something to do with ammunition required…5.56 vs .223 in various weights?

HELP!

2

It’s probably the chrome moly and not a stainless barrel.
either way it is a very good upper and not like you would be getting
a bad deal either one you picked up. I would go with the SS CL one.

3

If you want to know about the upper contact Noveske. People there are great and will take the time to answer questions.

Jim