Hey guys I'm looking at ordering a TC Encore Rifle Frame from Buds. I ran into an issue when I ordered an AR15 stripped lower a couple months ago when I went to pick it up. I am only 20 so I discovered I wasn't old enough to have the lower when I went to the FFL (acher arms, who didn't know the law on this either, not going there again). Will I run into this problem with a TC RIFLE frame? From all the research I have done it seems the rifle stock on it classifies it as a rifle since I can't put a short barrel on it without making it a NFA weapon. Thanks in advance!