I'm buying a couple lowers and I plan on using one to build an sbr in the future.
Are you able to swap uppers after registration? The paperwork asks for length and caliber. I wanted a 300 blackout sbr and a 556 sbr of different lengths. Can I register one lower as 2 calibers? Will I have to build two separate rifles and register each?
I've searched, just not clear on being able to swap uppers with varying lengths in different calibers.
Are you able to swap uppers after registration? The paperwork asks for length and caliber. I wanted a 300 blackout sbr and a 556 sbr of different lengths. Can I register one lower as 2 calibers? Will I have to build two separate rifles and register each?
I've searched, just not clear on being able to swap uppers with varying lengths in different calibers.