Midwest Industries Chrome Lining

I’m looking at complete uppers on their website, and they don’t appear to say whether the chamber and barrel are chrome lined, which I would like. Here is an example:

https://www.midwestindustriesinc.com/MI-N16SLH14-U-p/mi-n16slh14-u.htm

Any information on this would be appreciated. Thanks.

It has a melonite finish, not chrome lined

Their uppers built with their Combat Rails have Criterion button rifled and chrome-lined barrels. They are a few ounces heavier and $120.00 or more costly.

Criterion versions are chrome lined . Melonite versions are not and less money.
Thanks
Troy
MI