How To Set Up Back Up Iron Sights On An AR-15 (HD)
This guide details how to set up backup iron sights (BUIS) on an AR-15, drawing from Mrgunsngear's practical advice. It covers the 'ghost ring' method (front sight up, rear sight down) for quick deployment if an optic fails, and discusses co-witnessing options. The emphasis is on finding a setup that balances speed, accuracy, and sight picture clarity for the individual user.













