Our complete Glock OEM lower parts kit is made for the Glock G20SF and G21SF full large frame. All pieces are brand new and assembled into a kit before we ship them out. We put this kit together for the Polymer80 (PF45) 80% pistol frame coming with all OEM Factory Glock parts. The kit comes with everything you need to build out your large frame Glock 20/21.





There is no difference in the lower parts kit for the 45 or 10mm so you can use the same kit to build either one of them, or both of them. Your trigger housing should come to a point at the bottom where other models are flat at the bottom.