Hey everyone!

Hope you're all having a fantastic day! I'm diving into my first AR pistol build and could really use some advice. I recently picked up a PSA lower receiver through an FFL and I'm aiming to set up an 11 1/2 inch pistol receiver.

Here’s where I need your expertise: how do I go about attaching a brace to the firearm? Are there any specific regulations I need to be aware of for this setup as a pistol? I’ve already filled out the 77R for the lower receiver.

I’d love to hear what you all did for your own builds! Any tips, tricks, or experiences you can share would be incredibly helpful.

On a side note, I just made a video about flying with a firearm. I carried an unloaded pistol in my luggage and documented the whole process. If you’re interested in seeing how that went, check out the link below!

Thanks in advance for your help, everyone. Can't wait to hear your thoughts!

https://youtu.be/sQ61GfA4pnc?si=XLFxibsX9FGrHBB9