Here's how it works, you select the model of firearm you are wanting to build, then buy the Glock Mystery Grab Bag and you will receive a P80 Frame and a Glock Compatible Slide for that model. The items that may appear in the bag are as follows:
1 of any of these:
T1, T2, or T3 Slide cerakoted in OD Green, Tungsten, FDE, Black, or Burnt Bronze
You can check out some of the possibilities here: https://www.firearmsunknown.com/builds-parts/glock-compatible-parts/upper-parts/
and 1 of any of these:
Polymer80 Frame in Black, FDE, OD Green, or Grey
If you want to check out our frames for sale you can see them here: https://www.firearmsunknown.com/search/p80+frame/