G&G; CM16 Wild Hog 9 inch AEGThe CM16 has an installed pre-programmed MOSFET chip that is able to stop batteries such as a Li-Po from over discharging and becoming damaged. The MOSFET is also programmable to shoot from full auto to 3-round burst. Additionally, G&G; has installed an electronic trigger unit that increases response and assists in preventing trigger burns or locks in rapid semi-auto firing. Comes with a built in amplifier.ReceiverPlasticRailCNC Hard-AnodizingOverall Length760mmWeight5.12 lbsBushings/Bearings8mm Brass bushingsMotorStandard Motor 18000RPMBattery9.6v Ni-MHInner Barrel Length6.08mm Aluminum Inner Barrel 205mmHop Up ChamberPlasticMagazine300RMuzzle Velocity330~350 FPS (Measured with 0.20g G&G; BBs)TypeAEGBlowbackNoWire18 AWGCylinderAluminumCylinder HeadPlasticPiston HeadPlasticElectronic TriggerYesMOSFETYesSpring GuideBall BearingPackage IncludesMagazine, Manual, Jamming Rod, Mini CatalogGearboxVersion 2Thread Direction14mm CCWFiring ModeSafety, Semi-Auto, Full-Auto, 3 Round BurstColorBlack