MDTRS02 TACTICAL REAR SIGHT by Xtreme Tactical Sports $13.50 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Tactical Rear sight A2 style iron sight Detachable rear sight for use with anyflat top rail system Dual apertures, one for long range andone for short range Adjustable windage and elevation.