Airsoft Thompson M1A1 Repair

AAaaaahhhhhh The Thompson Airsoft Sub Machine Gun.

A favorite for airsoft gamers from all genres, Loved by WW2 re-enactors for its obvious place in US history. Widely used by modern day airsoft warriors for its full metal good looks and great performance and widely collected and hung on the wall by gun collectors who want a nice replica without applying for a class 3 federal firearms license.

With both TM and now CYMA making a licensed full metal Thompson I am beginning to see more show up at the airsoft gun repair service center, So this blog will be for the Tommy gunners. A quick side note, If you have a airsoft P90 airsoft gun the Version 6 gearbox is used in your airsoft gun as well.

The version 6 gearbox is much like the V3 except the motor is offset from the main gearbox body differently as shown here. You will also want to make a note that the bushings are special for the version 6 with the center one oblong in shape. Upgrading the bushings and spring guide to metal will drastically increase your airsoft gun durability and the amount of time between services and repairs. The separate modular trigger on this gearbox is nice as you will not have to worry about trying to keep this in place while you are closing up after upgrades.

For those of you who are looking to do this upgrade on your own you can find more Thompson airsoft gun repair pictures here.

To field strip this airsoft weapon you must first remove the stock screws which will reveal a hidden spring release button and the rear of the upper receiver. Push the button in and slide the receiver off. You will need to remove the hand grip, selector switches and motor to remove the gearbox from the metal body.

Once removed from the gun body you can open up the gearbox and upgrade, repair or just do a yearly service. To keep this historic 6mm bb machine gun chasing off the enemy a nice 350 FPS upgrade is about all you need as the base models come out of the box with nice accuracy and distance thanks to the Thompson's unique hop up unit. If you have any questions about Thompson or any airsoft gun upgrades visit the Wisconsin Airsoft Forums and ask...its the quickest way to get an answer! Well till next time...

armsdealer...OUT!