just a quick question, I know about the 100/500 exemption law but unsure about a certain area of it. I'm looking at buying a BCG from brownells but since the one part of that law states it's not for parts that operate the rifle, would the BCG as a whole be classified under that or just parts like the firing pin and such? Also is the 500$ limit excluding shipping costs or 500$ total after taxes?
Thanks for any and all insight