Prime Mech Airsoft, operating from their workshop in France, specializes in building high-end airsoft rifles designed for the fastest and cleanest trigger response and the quietest AEG performance. For the NPO AEG VSK-94, specifically prepared for Milsim events, they implemented several key internal upgrades, including the installation of a Leviathan electronic control unit, a 28k motor, and a 13:1 short-stroked (SSG) gearset with 13 teeth.