Livewire is a more traditional style AR15 receiver, but still unlike anything else out there with looks all its own. It is machined top to bottom from 7075-T6 aluminum with an oversized and integral trigger guard, beveled magazine flare, and a Multi caliber mark. The Jack is fully compatible with all mil-spec internal parts and other aftermarket mil-spec upper receivers, and GI standard issue magazines as well as PMags.