TaylorWSO, you bring up another thing that doesn't make sense to me... If that slot in the bolt carrier is needed for the gun to be not full auto in the ATF's eyes, how in the world can you have a host gun and just move a registered sear from gun to gun? Wouldn't all unregistered host guns need to have the bolt carrier modified with the slot cut in it and then the host gun wouldn't function at all with a registered sear pack in it? What am I missing here?
He who walks unarmed into paradise had better be sure that is where he is.
Item 21 on the exploded diagram shows the trip that I am talking about. That doesn't exist in a semi pack.
The bottom of the carrier difference:
I REALLY appreciate all of the information gentlemen. For us novices, its hard to keep track of all of this stuff. The guns are simple compared to the law! :) One last question and then I promise I will let this thread die. A youtuber had an MP5K non-NFA pistol. It had no vertical fore grip and no stock. He then puts a registered sear in the gun. After the trigger pack went in he puts a stock and vertical grip on the gun as he claims that is legal only after the sear is in the gun. Is this correct. Can you put a registered sear into any host gun and then turn said host gun into a legal SBR at will. And then convert it back to a non-SBR by removing the furniture and then the sear?
Machine gun trumps SBR. With a registered sear in it, barrel length doesn’t matter. When you take the sear out of the host, you either have to revert the host to a pistol, or the host has to be registered as a SBR on its own.
Do you even HK, Bro?
Same thing DLO did pre-HR4332, for his registered trigger boxes. The sear axle remains unmoved in this modification, as opposed to the semi-auto pack used with a transferable sear.