Polymer 80 Build Complete

I finished up the Polymer 80 "Glock 19" today. Impressions:

1. "Milling" the frame is easy. I used end nippers to remove most of the excess rail material, then filed and sanded them smooth.
2. Assembly gave me some issues but mainly because this is my first "Glock." In particular, I had issues getting the slide stop in correctly so that it would either turn the gun into a single shot, or fail to raise at all. But I got it squared away.
3. The "$0.25 Glock trigger job" is worth it. Before I polished several parts in the mechanism, the trigger pull was really heavy and gritty. Now it's a lot better and should smooth up with use.
4. The Polymer 80 grip is an improvement for me over the stock Glock 19 grip.

I am left handed and found that the magazine catch rubbed on my middle finger uncomfortable, so I beveled the offending corner.

Not being a fan of the hole in the bottom of the grip behind the magazine well, I added a Strike Industries grip plug, which holds a combo flat head screw driver/punch, and a small oil vial. It had to be sanded a bit to allow magazines to drop free. Speaking of which, I bought four MagPul P-Mags from MidwayUSA to go with the gun.

I'm hoping to shoot it tonight on an indoor range. Range report to follow.