Hey, I've been playing around with this mod a bit and I've noticed that none of my the traders in my game will buy or sell any of these weapons.
I have quite a few mods so it's fully possible it's some incompatibility, but for now I don't think that's the case.
I'm looking at RangedIndustrial.xml ThingDef AMGun's tradeTags.
I'm not a modder, but with the way this parent is setup for inheritance does this mean that only the logistics terminals will sell/trade these weapons?
I added a second tradeTag for "WeaponRanged" and now combat suppliers buy/sell these weapons.

I think there are some other items like AM_ClosedOxygenCylinder that also can't be traded.