I'm not seeing any. I see QD mounts and I see m4 barrel mounts, but no m16 barrel mounts. I'll keep refreshing it though. I check GB at least once a day.
I appreciate the response. I already have a QD. I'm looking for a u-mount non qd for a rifle length that fits under the traditional m16 m203 handguard. I already reached out to LMT and they did not have any available.
EDIT: found one for $23. Thanks everyone for all the help and advice.
I'm hoping to find a fixed barrel u-mount for an M203 to rifle. For being a bent piece of sheet metal, they seem fairly hard to find.
Offering $120+ shipping.
Thats a great deal! Wish this had come up before I purchased my MAC. If you are interested in splitting that 22 conversion kit off, Id be willing to take it.