Rocket Airsoft M170 AEG Spring - Japanese Black Steel Head Gear Crane stock for larger battery

Crane stock for larger battery capacity

Adjustable FPS

This optic is great reflex red dot for airsoft pistols or SMGs

Ambidextrous selector switch

Rail Type: 6

Rocket Airsoft M170 AEG Spring - Japanese Black Steel Head Gear Crane stock for larger batteryRocket Airsoft M170 AEG Spring Japanese Black Steel. One of our most popular airsoft upgrade springs! Very high quality steel made spring to get your gun running a high FPS. Fits in all standard gearboxes. This is your standard upgrade spring strength for upgrades. This is a non linear spring utilizing Japanese made steel spring material. Black color to differentiate spring types.