Zeroing a red dot optic on an airsoft pistol starts with a unique step: ensuring the BB actually flies in a straight line before you even touch the adjustment screws. Unlike real firearms where you can't see the projectile, airsoft players have the luxury of watching their white plastic pellets drift and Redmantoys got tips to help you how.

Milspec Mojo emphasizes the importance of eliminating external variables for an accurate zero. He recommends using a rear bag for stability and a mag pod for an additional point of contact. He prefers zeroing at 100 yards for more accurate windage and elevation adjustments (make adjustments for airsoft).

Another tip for beginners when they get their first optics, Airsoft Master shows how to zero-in one... "Most time Red dots are tended to be another fashion piece in the airsoft community. It still can be a very good reference tool for aiming if you zero the optic in! Here is a couple key pointers to help you adjust your optic and to help keep it center mass. Check out some of our items and rifles on our website at airsoftmaster.com!"

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."