I’m starting my first build with this polymer80 kit. It’s kinda cheating honestly. All the parts are here, everything. The slide is fully assembled already so I don’t even have to do that. Just gotta do a little milling and drilling, then assemble the frame and you have a full pistol. Sent to my door, no FFL. And no serial number Wish me luck on my craftsmanship, I hope I don’t mess it up.