The Noveske N4 OG Lo-Pro 12.5" 6mm ARC Pistol is an elite, 4th-generation direct impingement semi-automatic firearm meticulously optimized to maximize the long-range ballistic potential of the 6mm ARC cartridge from a highly agile footprint. Built on premium 4th-Gen matching billet 7075-T6 aluminum receivers finished in a durable Bazooka Green Cerakote, this platform centers around a 12.5-inch 416R stainless steel barrel with a hand-polished match chamber and a smooth-cycling mid-length gas system. The premium upper assembly hosts a free-floating 10.75-inch Gen 4 NSR M-LOK handguard, Magpul MBUS Pro steel folding sights, and a 5/8x24 threaded "Pig Pen" flash hider optimized for direct suppressor integration. Exceptional shooter physics and mechanics are driven by a flat-bow two-stage Geissele Super Dynamic-Enhanced (SD-E) trigger system, an ambidextrous "Love Handle" charging handle, and fully ambidextrous lower receivers featuring a Radian Talon short-throw safety selector. Intentionally configured to bypass NFA short-barreled rifle registration, it utilizes an ergonomic black B5 Systems Type 22 pistol grip and a clean, "braceless" mil-spec carbine receiver extension paired with a heavy H2 buffer system.