Understanding the Polymer 80 Glock 19 What is the Polymer 80 Glock 19? The Polymer 80 Glock 19 is an 80% lower receiver designed for building custom Glock 19-style handguns. Unlike traditional firearms, where the lower receiver is fully manufactured, the Polymer 80 Glock 19 requires finishing by the user. This process allows individuals to …
Essential Guide to Building Your Polymer 80 Glock 19: Tips and Insights