Check the listing for details. Compact Tactical Red Green Dot Reflex Sight 20mm 3 MOA Low Profile for Picatinny. Color: Black, Condition: New. Listed at 45.99 USD. Red Hawk Series 20mm Compact Reflex Red/Green Dot Scope. SKU PRRH011PRESMA RED HAWK DELIVERS A DURABLE, LIGHTWEIGHT, COMPACT, AND EASY TO USE DESIGN. JUST POINT AND SHOOT, IT’S THAT SIMPLE, FAST AND ACCURATE.Green and Red dot clickable button brightness controls isdesigned on 45 degree angle surface for quick access and easy to find. Each color has 11 levels of density and automatically returns to last dot density when power is turned on.The 3.5 MOA Red/Green dot diameter provides precise target of aim. The O-ring sealed and Argon filled one-piece body machined from 6061-T6 aluminum is waterproof, fogproof and shock proof performance. Low profile integrated picatinny ring mount offers quick mounting on AR’s and shotguns.• 3.5 MOA dot diameter.• 11 Levels of Green/ Red Dot density adjustment• Density control is designated on easy and viewable 45 degree angle surface.• Automatically returning to last dot density when power on.• Access dot density adjustment button on the rear of Scope• Emerald Multi-Coated Lens• One-piece body CNC machined from 6061-T6 aluminum• Low profile integrated picatinny ring mount• Lightweight, Compact and Easy to Use Design• O-ring sealed and Argon filled for waterproof, fogproof and shock proof performance.