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.

The video by Prime Mech Airsoft showcases their custom-built 2J MK18 Next Gen Build, which is based on the M4A1 CQBR SOPMOD Block II platform. This airsoft rifle utilizes the Tokyo Marui Next Gen Recoil Shock (NGRS) system, and its performance has been enhanced with several upgrades, including the installation of a Leviathan NGRS electronic control unit, PandoRA Retro Arms gears, and a Brushless T238 motor, resulting in a muzzle energy of 1.9 Joules when firing a 0.36g BB.

This airsoft build, performed by Prime Mech Airsoft in France, focuses on creating a high-end airsoft rifle characterized by the fastest and cleanest trigger response and the quietest AEG operation. The foundation for this custom rifle is a M4A1 CQBR SOPMOD Block 3 base gun in the Flat Dark Earth (FDE) / TAN edition, featuring an MK18 RIS III.

This is a high-performance custom airsoft rifle built by Prime Mech Airsoft in their workshop in France. The core of the build is a customized Krytac KRISS Vector, featuring internal upgrades designed for maximum efficiency and response. Key components include a Perun KRISS MOSFET, a SoLink 28k motor, and a 13:1 short-stroked (SS) 12-tooth gear set. These modifications are specifically aimed at delivering the fastest and cleanest trigger response and the quietest operation for an AEG (Automatic Electric Gun).

In this build, Prime Mech Airsoft show their G&G ARP9, which has been expertly upgraded for SpeedQB. This AEG features certain components to ensure maximum performance, including a Gate TITAN II Bluetooth electronic trigger unit, an 18:1 DSG (Dual Sector Gear) for rapid fire, and an NBF brushless motor for exceptional efficiency and speed. The final assembly is precisely tuned to achieve an output of 1 Joule with a 0.28g BB, delivering both power and a lightning-fast, clean trigger response.

Prime Mech Airsoft, a French workshop specializing in high-end airsoft rifles, has demonstrated their custom SIG Air ProForce MCX Virtus. Based on the VFC-made platform, the rifle has been upgraded with an Airsoft Artisan stock and a 10-inch SUR300 rail. It also features internal enhancements for superior performance, including a Gate ASTER II Bluetooth system, 13:1 gears with 12 teeth, and a 22 TPA motor.

Prime Mech Airsoft has introduced a limited-edition, long version of their Brushless x Helical KRISS Vector Upgrade, built upon the Krytac KRISS Vector platform. This upgrade features a Perun KRISS for enhanced performance, a Brushless SoLink 28k motor, and a Helical 16:1 SSG SoLink gear set, allowing the airsoft gun to achieve an output of 1.3J when using 0.30g BBs.

Prime Mech Airsoft show na custom-built, high-end airsoft rifle: a VFC MK16 URGI Colt Licensed model designed for superior performance. This rifle features a Jefftron Leviathan Optical V2 control unit, a unique 5:1 helical DSG (SoLink) gear setup which translates to a 10.8:1 or 5.4:1 ratio, and is powered by a 28k brushless motor that eliminates the need for an Anti-Reversal Latch (ARL).

Watch the video from Prime Mech Airsoft to see if they achieved their claimed performance with the VFC HK416 project of achieving a perfect sound, which featured a build using 13:1, 12-tooth gears, a Brushless 28k SoLink motor, and a power output of 1.2J when using 0.30g BBs. 

The team at Prime Mech Airsoft in France demo their custom work which is a M4A1 CQBR SOPMOD BLOCK 2, also known as the MK18 RIS II Black (featuring a Daniel Defense rail), which is internally upgraded with a Gate ASTER II Bluetooth control system, a 13:1 ratio/12-tooth high-speed gear set, and a high-torque 22 TPA motor, resulting in a performance of 1.4 Joules with 0.32g BBs.