How to silence an airsoft GBB gun (Actually makes it silent)

In this video I show how you can silence an airsoft gas blowback gun. This is useful if you want to practice indoors at night or if you need to make silent shots outdoors. The shots are virtually silent.

WARNING: Stupid comments will be erased, no exceptions. Any stupid springer comments will get erased.

Note: THIS IS NOT A SPRING PISTOL. Watch the video or read the video description on how to avoid having to manually rack the slide each shot.

Some people will be unsatisfied with having to rack the slide manually, so if you don't want to do that, you need to replace your recoil spring with a weak spring. With a weak recoil spring the slide will rack automatically with each shot.

The slide movement itself is noisy so I haven't replaced the spring as the goal I was after was to be able to shoot silently even in the middle of the night indoors without getting complaints from my GF or neighbors.