Lengthy tutorial by MacGyver Custom Airsoft showing how to adjust a scope. This is over 30 minutes, so you might want to take down some notes especially di you are a newbie... "Have you ever adjusted your scope and have not understood why it did not work as it should? In this video you will know how to do it correctly, step by step and with materials from home."

Another video giving tips on zeroing in optics and this time it's in Dutch by Krale Airsoft. Just turn on the language caption on your player to follow... "Your airsoft scope or red dot is important, but you're not sure how to set it up to it's best ability? In this video we explain step by step what you need to do to optimally set up your airsoft aiming devices.

Another session on how to zero in your airsoft guns in case you need a refresher. Kevin Owens got this tutorial for real steel but you can learn a thing or two for airsoft... "Zeroing your rifle at 50 yards for a point blank zero of 200yards. BDC reticle are great but are only calibrated for one bullet and one density altitude. Without a proper zero nothing else matters, do it right the first time."

For mainly Japanese language players but everyone's welcome to watch this video about zeroing-in and aiming position by former soldier in this video by サバゲーマーせんちゃん ... "This video is about zero-in and aiming position taught by a former SDF officer."

Tips in adjusting sights and optics in airsoft needs a refresh and Chris of REMF Tacticool does just that in this video... "A rarely brought-up topic in airsoft but one I think should be more commonly known about. It's rare for airsofters to not have at least iron sights on a gun and most out there use a red dot of some kind which can usually be zero'd; instantly making that same sight massively more useful at basically no cost."