I think I know the answer to the first question, but want to check with the knowlege here, since I had something else to ask. I will be talking about it with the local ATF Inspector when he returns from vacation next week:
I have an idea for a "drop in" style sear for sl8 (and maybe USC) trigger sets, that would function with the semi bolt carriers and not require any receiver modification (and hopefully, not even any trigger housing mods, other than replacing parts). Essentially a conversion sear, like those used in ARs. My intent is only to do R&D on it. If it functions as I envision, I would like to sell the design and rights to a manufacturer who can concern themselves with the logistics of legally manufacturing and selling them. I have a full time job, and have no intention of starting my own business.
As I understand it, the only way I can do it without spending all the money for a manufacturing/sales license that I never intend to use, would be to get a written waiver from ATF?
My second question, and real reason for this post: Does anyone know who might be looking to produce and sell something like this?