For those looking to build an AR-15 at home, a Polymer 80 jig is the way to go. The Polymer 80 jig allows you to quickly and easily construct your own AR-15 lower from the comfort of your own home with minimal effort. With the Polymer 80 jig, you can create a high-quality, personalized lower that is sure to impress. Plus, with the Polymer 80 jig, you can be sure that you are getting a product...