Looking for advice before I purchase a PA-15

[Rufus]

Found it

All You Ever Wanted To Know About BCGs

This will irritate some people, but I’ve learned more about AR15s here than anywhere else. The information is unbiased, and backed by facts and personal experience. Chad has seen over twenty some thousand AR15s come through his school. [AR15 Bolt Carrier Group Coatings & Finishes - The Good & Bad]