Optimus Defense AR-15 Lower Drill Jig was designed to aid in completing Optimus Defense AR-15 80% Lowers. This drill jig when used in conjunction with a drill press and vise is capable of completing an AR-15 Lower to mil-spec tolerances.
This high quality drill jig has been designed for ease of use, and is capable of completing multiple lowers. The side plates are left un-anodized on purpose, this ensures that when clamping your lower you will have less of a chance of scratching or denting the lower. This drill jig has been designed for use with the Optimus Defense 80% Lower, however mil-spec forgings and most other billet lowers should fit, but may require the additional Upper Lug Pocket Top Plate.