Aside from finishing AR-15 lowers, the Ghost Gunner will help make lots of other guns and with some third party support you are able to open up up the Ghost Gunner to conduct other tasks like engraving your lowers. It's also possible to mill other lowers similar to a Polymer https://franciscojmljg.blogsmine.com/33406059/how-ghost-gunner-can-save-you-time-stress-and-money