kit

I just built my first Poly80 and figured I would share for anyone who may be interested. I purchased a kit through 80pbuilder for around $450 and had it shipped to my door and had it functional within a week after buying it. A lot of people think that building a Poly80 is only to get around...

So I need to deck out a lower and I understand the trigger group but I need everything else that goes in it: the mag release, buffer tab springy thing, other springy things for the safety, the safety, bottom of the trigger guard, etc. What do you call all that and is there a kit form of all of...