I'm on a zillion lists already so blogging about this isn't going to make a difference for me.
Aside from that, it will be a great learning process so I know how Glocks work from the inside out. Glocks are among the most common handguns available so that's a good thing.
What's really neat about this is that because the receiver is plastic, it can be done entirely with hand tools. I've read of guys completing one of these in a half hour. That said, I plan to take my time and get it right.
Another nice thing from my perspective is that the Polymer 80 frames fix the uncomfortable-to-me Glock grip angle (the main reason I don't own a Glock).
The frames are compatible with OEM Gen 3 Glock parts, or aftermarket Gen 3 Glock parts. Gen 4 or 5 parts do not fit. Gen 1 or 2 may fit but Gen 3 is specified for these frames.
- Polymer 80, maker of the 80% lowers (also has polymer AR15 lowers).
- Nice article on Pew Pew Tactical detailing the build process with lots o' pictures.
- Massive thread on Arfcom with tips, notes about pitfalls, and pics of a bunch of builds.
- Another useful Arfcom thread.
The Polymer 80 kits and assorted parts are available from various online vendors including MidwayUSA and Brownells. However, I didn't want to have to source all the parts to complete the build separately, so I went to 80P Builder and ordered a "Ruiz Package" which includes the 80% frame, lower parts kit, and an assembled barrel/slide assembly. This package was a special and is now out of stock. (Fred Ruiz is a pro shooter/ex-SEAL sponsored by 80P Builder.)
Pic of the kit I ordered:
(Picture borrowed from 80P Builder.)
The kit does not include a magazine and 80P Builder only has ETS mags in stock, so I ordered 4 MagPul Glock 19 P-Mags from MidwayUSA. (I don't know how good the ETS mags are. They may be just fine.)
Note: The frame has a metal plate molded in so that if you want or need to add a serial number, you can do so. E.g., California builders can request a serial number from the CA DOJ for their gun to stay within the bounds of state law. This is not required on a Federal level. In my opinion, putting some kind of serial number on the gun is a good idea if for no other reason than identification if you need to file a police report for a stolen gun.
Polymer 80 also sells frame kits for Glock 17 and 26 size guns. While mine will be in 9mm, AFAIK you could build one in .40 S&W or .357 SIG as long as you get the correct parts. They also work with Advantage Arms .22LR conversion kits. Polymer 80 is supposed to be introducting G20 / G21 sized frames later this year, for those interested in a 10mm or .45 ACP build.
I got a shipping notice from 80P Builder this morning. They are located in Charlotte, NC, so I expect to have it by the end of the week.
Updates to follow.