Another ar pistol noob question

[Shankin swine]

I recently built a 80% lower. I want to build it into a pistol configuration. Besides a bullet button what else should be done to remain legal? Thanks for any helpful info!

[pluke the 2]

as long as you follow the flowchart you should be good to go.

https://www.calguns.net/caawid/hgflowchart.pdf

http://www.calguns.net/calgunforum/showthread.php?t=86627

[pluke the 2]

ps im building 2 (of 4) rightnow out of 80-100%ers

[Shankin swine]

Awesome thank you.