How to Upgrade an Airsoft Part 4

Opening a Marui M-series gun

1. Understand that the M-series refers to the M16 A1, M16VN, M16A2, R-16, M4 RIS and the M4.
2. Remove the magazine. Fire your gun 3 times in Semi-Auto upside down to ensure there are no BBs in the chamber. Remove the battery.
3. Remove the stock. If it is a full stock just remove the 2 screws on the butt plate and it should come off right away. If it is a folding stock you need to remove the sliding part. To do this pull down on the lever and slide it off. Then remove the hex screw on the bottom of the plate and take the cap off with some pliers (this will require some force). Unscrew the screw on the inside with a long philips head screw driver.
4. Remove the back pin on the reciever and pull the reciever apart (this will require force). Don't break the taps. Now remove the front pin and pull everything apart. Apply a small amount of grease to the tabs for easier opening.
5. Remove the magazine release by unscrewing it and pushing it through. Reassemble the magazine release out side of the gun to aviod losing any parts.
6. Pull out the pin in the middle of the receiver.
7. Remove the plate on the bottom of the pistol grip by unscrewing two small screws.
8. Slowly lift it off.
9. If there is a metal disc on the motor continue with the next step. If not, remove the 2 wires connecting the motor to the gun and simply yank it out with pliers. If you couldn't find the metal disc on top it will be on the motor because it is a magnet. Put the disc on the motor plate.
10. Remove the 3 small screws on the base. This is really difficult to do so just keep trying.
11. Pull out your gear box and, if you want to, put it all back together.