Josef Mucha released a video to assist you in fixing the trigger box of Gas Blowback Rifles from WE Airsoft... "All WE GBBRs will have this problem sooner or later. This is how to fix the full auto fire on semi only. I would buy spare WE parts. Steel parts might damage the bolt carrier groups as I've been told by other GBBR players. Your choice."

Another upgrade part release from RA-Tech, and it is a steel trigger box for the WE Airsoft MSK Gas BLowback Rifle. This replaces the original zinc trigger box that comes with steel trigger set. If you want to order a brand new WE Airsoft MSK with this steel trigger box installed, you can go to Airsoft Taiwan and order it.

Another howto video from the Airsoft Punisher. In this video he shows how to take down the L85 and remove the trigger box. If you own of these rifles, better watch and learn so you will  know how maintain your airsoft gun... "Just trying to fulfill some request videos and this is the video on how to remove the WE L85 trigger box."