Patriot Ordnance Factory rifles include a free-floating modular handguard, Magpul retractable buttstock, anti-tilt buffer tube, NP3 coated upper and lower receivers, nickel boron coated bolt carrier with roller cam pin, receiver tension screws, ambidextrous safety selector, ambidextrous bolt release with enhanced bolt catch paddle, ambidextrous magazine release, ambidextrous bolt catch, oversized integrated trigger guard with grip relief, KNS precision anti-walk pins, drop-in single stage trigger system, Magpul MOE pistol grip, Magpul PMAG magazine included, E² dual-extraction chamber, oversized heat sink barrel nut, interchangeable rail sections, nitride heat-treated gas block, multi-position gas system, nitride heat-treated fluted barrel, and a triple-port muzzle break.