View Full Version : Reg. AW Question Changing Caliber

02-08-2009, 9:25 AM
I have a reg aw Colt AR-15 9mm that is listed as such on my doj aw letter.
my question is can i set up the caliber to 223 instead of 9mm and keep it in 223?
i know the side of the ar-15 will still say 9mm, but if it's checked out by a leo, all info of the weapon will check out with doj records except for it is set up in 223.
is this legal? do i have to notify doj?:confused:

02-08-2009, 9:26 AM
You're fine as long as you don't cross over into NFA territory.

02-08-2009, 9:51 AM
Caliber is only supplementary information on the DOJ AW reg form.

It merely reflects the caliber of the gun at the time of registration. It does not restrict future changes to it.

There is no requirement to retain caliber on a registred AW. You can change caliber on a registered AW to anything legal, including 50BMG.