Quote Originally Posted by kidicarus13 View Post
http://www.thetruthaboutguns.com/201...-bolt-carrier/

Not a big deal. He'd have to go way out of his way to get a full auto sear and then there could be some problems.
And other select fire parts, and a third hole... It's amazing how some people (not you) get all twisted up over something they know nothing about.
I guess living in mom's basement, playing COD all day makes someone an AR expert.

All my uppers have FA BCG. Some have been run on a registered NFA FA lower.