In concerns about quantity available of these, thought it might be good to look at serial # ranges.
I purchased two start of last November from Tombstone Tactical.
Lower # is C0735xx. xx are last two numeric digits.
Higher # is C0767xx. xx are last two numeric digits.
If others want to share higher/lower than these it might help to identify actual quantity produced and/or available. But if these are overruns, etc, not all of the ranges we see on serials may in fact be stateside... Regardless, would be good info nonetheless.