Last Activity:11-24-2009 9:15 PM
Posted in thread: M16 Multi-cal & ATF Paperwork on 11-22-2009 at 04:49 AM
Hi:Is there an "official" ATF rule that addresses the need to notify ATF if you add a 9 mm
upper to a registered M16 or have multiple barrel assemblies with different barrel lengths? I
have been told ...