Muddy Reviews checks out the ESS Crossbow Gasket Kit if it is good for airsoft use... "I absolutely love the ESS Crossbow glasses and the gasket kit for Survival Game and Airsoft use. They come in both black and FDE frames and are great for numerous different Impression kits, in my opinion, you can't go wrong, and for the price, they are difficult to beat. As always thank you very much for watching, I hope to hear from you in the comments section and get out there and sling some plastic!"