NcStar 35mm Red/Green/Blue Dot Optic Bolt optical sensors are much more

optical sensors are much more reliable

Reducing as much possible air loss allows for the power barrel to achieve maximum performance

One on the gun end of the hose and one on the regulator end

The slim profile of the MREX greatly improves the aesthetic of the SCAR by giving it a long sleek profile

5 X 32mm scope with a very tough & durable cast aluminum body and High Definition prismatic lens providing great optical clarity and resolution

NcStar 35mm Red/Green/Blue Dot Optic Bolt optical sensors are much moreLED (Light Emitting Diode) 100% Safe for the Eyes Unlimited Eye Relief for flexible mounting Rheostat Knob with Three Brightness Levels for each of the Red, Green, and Blue Dot reticles Includes TAN color 30mm Cantilever weaver Picatinny type Mount Black Ocular and Objective Flip Up Lens Covers for a nice contrasting look! Black Ocular and Objective Flip Up Lens Covers for a nice contrasting look! Powered by 3 Volt Lithium Batteries (CR2032) included