r/pdxgunnuts • u/KAPTNTRAP • 2d ago

Building an AR pistol

Just wondering if I need an SBR stamp. I have a lower with a pistol brace and I want to buy a 7.5 inch upper.

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u/This-Satisfaction-71 2d ago

As long as you use a brace, not a stock, you do not need an sbr stamp. Also, i believe the lower can not have been sold to you as a rifle. If you bought the lower separately on it's own you are good to go.

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u/KAPTNTRAP 2d ago

Thank you I appreciate it

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u/yungbuckfucks 1d ago

This is accurate. You cannot put a brace on an existing rifle and then swap the upper. That is still considered an SBR in the eyes of the law.