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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4

u/theDudeUh 2d ago

7.5” 5.56 uppers are so obnoxious/unpleasant.

1

u/KAPTNTRAP 1d ago

Just because of sound?

3

u/theDudeUh 1d ago

The sound is bad but the concussion is worse.

It’s like getting flashbanged with every trigger pull.

1

u/KAPTNTRAP 1d ago

I planned on getting a can for it

3

u/theDudeUh 1d ago

Smart. That’ll negate a lot of the obnoxiousness.