Criterion Core with Wilson Combat Billet upper compatibility

[David4570]

This may just be another dumb question but-
I’m trying to find out if there are any compatibility issues putting a Criterion barrel with its M4 feed Ramos on a Wilso Combat billet upper with its ”M4 like” feed ramps.
Below is a picture of the Wilson M4 like ramps.
I don’t have the barrel yet. would the Criterion be “happier” on an upper with true M4 ramps?

 

[aard3]

I believe you can put a barrel w/ M4 feedramps on a lower without them, but you cannot put a barrel with no ramps on a lower w/o them.

This is because the rounds can angle downward and get trapped under the barrel.

I'm sure someone will be along that can either confirm this or set me straight

Love the Criterion barrrels though... hard to go wrong for the price.

 

[bfoosh006]

OP should be GTG.