Find out what these upgrades for airsoft are in this video from Damascus Airsoft... "This is my first ever video talking about teching in airsoft. Teching is something that's always interested me and I've wanted to work with for ages but I didn't want to do it myself since I didn't know enough and might end up breaking the replica.

Luckily for me I made some really good friends along my journey in the airsofting world, both of which are outstanding techs. In this video we'll go step by step talking about all the tuning we did on my EMG Sharp Bros Jack, from shimming, to greasing, air seal, hair trigger and more. Alot of these upgrades are great for milsim or speedqb/speedsoft considering the sheer versatility! I hope you guys learn from this as much as I did, and enjoy!"