SS80 for Sale. Build your own Glock with the SS 80 Single Stack 80% Lower that you complete with Glock 43 parts. The NEW SS80 Single Stack 80% Lower is now the best 80% lower on the market. This new version is not only new but improved in design and materials!Based on the customer feedback and months of research and development, the SS80 is made with a much stronger and more durable nylon/polymer blend that is similar to the original 43 but actually dampens felt recoil and provides even better reliability. You'll notice the grip texture immediately. It provides a rock solid grip that feels good and is strikingly attractive. The frame is shaped with a double trigger undercut that allows you to get a higher grip on the gun, which reduces felt recoil and improves speed and accuracy. As with all 80% Lowers, at this time there is no serial number, however a serial plate is embedded in the polymer to allow you to serialize it once completed.The SS80 is compatible with parts designed for the Glock 43.