CCCP M150 AEG Spring (SP150)

Dominate outdoor skirmishes and reach extreme engagement distances with the high-output ACM M150 AEG Spring (SP150)! Purpose-built for high-power Designated Marksman Rifle (DMR) builds and specialized long-range airsoft electric guns, this heavy-power upgrade spring provides the raw mechanical energy necessary to propel heavier BBs (.30g–.40g) downrange with flat, predictable trajectories.

High-Tensile Steel Wire & Non-Linear Coil Design Manufactured from premium-grade, heat-treated alloy spring steel, the ACM M150 spring is specifically treated to resist tension loss, sagging, and set deformation under high compression loads. It utilizes a non-linear (variable pitch) coil configuration that spaces the spring coils unevenly along its body. This engineered design allows the initial compression stroke to require less rotational torque from your high-torque motor and gear set, easing strain on your trigger switch, battery, and bevel gear during piston start. Once fully compressed, the tightly wound rear section releases maximum explosive power to push the piston assembly forward at ultra-high velocities.

Extreme FPS Potential & Balanced Stress Distribution In setups featuring complete air-seal efficiency and tight-bore inner barrels, an M150 rating typically generates between 480 and 520 FPS (measured with 0.20g BBs). Both ends of the spring are precision-ground flat to ensure flush seating against bearing spring guides and bearing piston heads. This prevents rotational torque binding, reducing lateral stress on the gearbox shell and piston guide rails during cycling.

Universal AEG Gearbox Fitment Built to standard AEG dimension specifications, the ACM M150 is compatible with Version 2, Version 3, Version 6, and extended Version 7 / SR25 gearbox shells. Note: Due to the high tension of an M150 spring, it is strongly recommended to use reinforced metal gearbox shells, high-torque motors, steel gear sets, full-steel-tooth pistons, and bearing spring guides. Upgrade your high-power build with the exceptional strength and value of the ACM M150 AEG Spring (SP150)!