Eliminates the need for everything from receiver to hand guard Aircraft Aluminum Alloy Universal - 30mm/25.4mm Bubbles that can be flipped over - the sides can have extra to achieve much higher accuracy Get the right eye relief Degree of Angle/Cosign - (adi-/aci-) takes the guesswork out of downhill shots. Red hands move with you, showing the number showing off the off ratio, Manufacturer: Uitndvyte