The Polymer80 PF940SC jig is a tool designed for use with the PF940SC frame, which is an 80% lower receiver for the subcompact Glock 26 and 27 handguns. The jig is used to guide the user in drilling and milling the necessary holes and pockets to complete the frame and turn it into a functional firearm. The PF940SC jig includes all the necessary drilling and milling templates, as well as instructions, to ensure the frame is completed correctly and safely. The jig is made of high-strength polymer and is reusable for multiple builds. It features an integrated drill guide and depth stop, making it easier to achieve precise cuts and holes. Additionally, the jig includes a front and rear steel rail system, ensuring proper alignment of the slide and barrel. The PF940SC jig is designed to work with standard Glock 26 and 27 parts, and is compatible with Glock factory and aftermarket magazines.