Ultradyne C2 Folding Rear Offset Sight Black. Fully machined from the perfect combination of 416 SS and aircraft aluminum to maximize strength and weight. The positive click oversized windage knob which serves as storage for the .070 aperture when using the ghost ring. The sleek design keeps your rifle looking good while delivering remarkable performance at the range and in the field. Specifications for Ultradyne C2 Folding Rear Offset Sights: Manufacturer: Ultradyne Color: Black Fabric/Material: 416 SS with Nitride Finish/6061 Aluminum Hard Coat Anodized/CNC Machined 7075 Aluminum Gun Make: AR Platform Front Sight Color: No Front Sight Illumination Color: Red Gun Type: Rifle Hand: Right Rear Aperture Size: 0.7 in Last Chance: Yes Mount Type: Picatinny Features of Ultradyne C2 Folding Rear Offset Sights Right Handed 45 Degree Offset Windage-Adjustable with positive location marks 1/2 MOA/Click Interchangeable .070 Aperture and Ghost Ring Spare aperture conveniently stores into windage knob Strategic use of materials to maximize strength and minimize weight Package Contents: Ultradyne C2 Folding Rear Offset Sights Ultradyne UD10007: C2 Folding Rear Offset Sight Black