H&K Dual Power Electric Airsoft Rifle, Clear

HK electric airsoft rifle; Full/semi auto; AEG blowback; Metal gears with 8mm bearings; high torque motor; 440 round capacity. Troubleshooting tips : Make sure battery has a good connection and is fully charged. The battery is NOT charged out of the box. First initial charge for 4hrs and then all charges from that point on for 2hrs. As battery weakens performance will deteriorate. Wind the magazine. The magazine is spring loaded and requires tension on the spring. As bbs are shot there becomes less tension on the spring and causes the gun to misfire or skip shots. The wheel on the bottom of the magazine is turned to tighten the tension. This must be done throughout the use of the gun or the item will not function. This is mentioned in the video. If the gun is used in spring power mode the gun will only function with SEMI auto. Full auto is only functional with battery power.