The NcSTAR VD4BKM Keymod Quick Release 4 Reticle Reflex Optic is engineered for precision and adaptability, perfect for any tactical shooter.This advanced optics system features a patented KeyMod(TM) quick release mount for effortless installation, compatible with KeyMod(TM) handguards. With four selectable reticle options and seven brightness settings, it ensures superior visibility under any lighting condition.KeyMod(TM) Quick Release 4 Reticle Reflex OpticPatented mount allows easy installation on KeyMod(TM) handguardsFour reticle options: Dot, Bullseye, Cross, BullseyeUnlimited eye relief for flexible mountingDurable black anodized aluminum constructionIncludes tools for adjustments and rubber lens capElevate your shooting experience with the NcSTAR VD4BKM for unmatched reliability and performance.