Machining Made Easy In an age of complex CNC machinery, where computer-guided routers can finish hundreds of 80% lowers in an hour, milling your own lower is surprisingly easy. Private gun owners don’t require the efficiency of CNC. They need a foolproof way to finish 80% lowers flawlessly. This is what we offer, using our expertise in firearms, mechanical design, and manufacturing to supply the jig, 80% lowers, tools, and post-sale support you need to perform outstanding work and move to the next phase of your gun build with confidence.