So what are these? If it's your first time to do some upgrades on your airsoft gun, better take some baby steps first if it's you who is going to it rather than an expert gun smith. Kraken Airsoft got some recommendations for you in this video... "Airsoft upgrades can be a very scary thing for beginners, so we are here to simplify, and tell you all you need. Today we take a look at the best first upgrades for your airsoft gun. Of course this is all just my opinion. However I feel these parts are the best bang for your buck, upgrades that you can buy. I personally like to wait until things break to go much heavier intro upgrades after these items."