5.56 BDC scope

Riton Optics, affordable quality glass. Riton USA  , a Veteran and former Federal law enforcement owned company, sent me one of their RT-S MOD 3 4.5-18X40 rifle scopes to go over and see what is what.  Since that particular optic has a bullet drop compensator for 5.56 I decided to mount it on an AR-15 that…