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fal308 · March 18, 1999, 11:22 AM

My understanding is that anyone may buy any unrestricted parts. Understand that some restricted parts in proximity to a similar weapon (i.e. a 10.5" AR upper and an AR) may be construed as an NFA device (in this case an SBR). The registered part is the regulated part, so you could buy another frame flat or whatever for your weapon and still be legal. I believe that the sear is the registered part on the Mac 10s.

The best and most definitive answer I can give would be to request a written reply to your questions with the Technology Branch of the BATF and keep it with your other paperwork.

You might also want to look at the FAQs on their website for a little better guidance, but don't take it as gospel. Get it from the Tech Branch in writing is the only legally acceptable answer.

March 18, 1999, 11:22 AM	#2
fal308 Staff Alumnus Join Date: October 12, 1998 Location: Missouri Posts: 1,992	My understanding is that anyone may buy any unrestricted parts. Understand that some restricted parts in proximity to a similar weapon (i.e. a 10.5" AR upper and an AR) may be construed as an NFA device (in this case an SBR). The registered part is the regulated part, so you could buy another frame flat or whatever for your weapon and still be legal. I believe that the sear is the registered part on the Mac 10s. The best and most definitive answer I can give would be to request a written reply to your questions with the Technology Branch of the BATF and keep it with your other paperwork. You might also want to look at the FAQs on their website for a little better guidance, but don't take it as gospel. Get it from the Tech Branch in writing is the only legally acceptable answer.