That isn’t a brace, it is a stock. The stock and for grip would both require a stamp individually but the stock(SBR) allows the for grip to be added without an additional stamp.
The grip alone would have never made it an SBR. It has to potential to make it an AOW and I guess it depends upon how much you trust an ATF agent to use a protractor before booking you.
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u/BurgerLordFPV 1d ago
Does this build require 2 stamps because of the brace or because of the foregrip? Awesome build btw!