Building A Competitive Speedsoft Build
OptimusPrime
06 Jan 2026
iiAnferny puts together a competitive Speedsoft "Classic Carbon Build." The foundation of the rifle is an AirTac Customs carbon upper, which defines the name, paired with a lightweight aluminum base. The external shell uses a classic G&G M4 style body, enhanced with a Mac-branded skeletonized trigger guard and end cap for a clean and functional exterior.
For internal performance, the rifle features an AirTac and Maxxx hop-up unit, a Lambda inner barrel, and a 70° Maple Leaf bucking to ensure accuracy and consistent shooting. Powering the system is a reliable classic PolarStar Jack HPA engine, which is controlled by a Gate Titan Bluetooth trigger board for precise adjustment and responsiveness via a mobile app.
A notable feature is the special AirTac/Mac gearbox design, which includes an open back to house the Lipo battery, removing the need to run cables through the grip. The build is finished with the iconic OG Euro Tactics 14-degree angle grip, built to work seamlessly with a Wolverine Storm regulator, and the entire setup is powered by a compact HK Army 48/4500 psi HPA tank.