Prime Mech Airsoft M4A1 Daniel Defense RIII Bronze Build
OptimusPrime
23 Feb 2026
Prime Mech Airsoft does a quick demo of their custom build, a stunning M4A1 Daniel Defense RIII Bronze AEG. This high-performance rifle features the distinctive MK18 RIII 14.5-inch configuration, blending a sleek, modern aesthetic with rugged durability.
Internally, the build is engineered for precision and power, boasting a Leviathan Optical MOSFET and a high-torque 28 TPA motor. The setup utilizes 18:1 helical SSG 13-tooth gears to deliver a consistent 2.0 Joules of energy when using 0.36g BBs, making it a formidable choice for competitive play.