Turn on your language captions as Airsoft Entrepot TV guides you through making a selection of optics to use on your airsoft gun... "You do not know which optics to choose for your replica? Or know what a red dot is for? This video is made for you :). SUMMARY Presentation (0:20); Red Dot and Eotech (0:42); Optics and ACOG (2:37); Compatibility (5:24); Accessories and Other Sights (7:46); and Conclusion (8:50)."