VISM Pro Series Flip-Up Rear Sight

VISM Pro Series Flip-Up Rear Sight Pro Series Flip-Up Rear sight is a low profile spring loaded rear back-up sight that flips-up and deploys with a push of a button. Features: Features an A2 dual aperture (large & small) that is fully adjustable for windage Knurled windage knob makes adjusting the windage an easy task Rear sight low profile design folds flat to fit under the majority of scopes Rear sight flips-up to the deployed position with a push of a button Dimensions: 2.4"L X 1.2"W X 0.8"H Weight: 2.3 oz Aluminum main body with steel A2 rear aperture Windage knob And adjustment screw Mounts onto Picatinny Mil-STD 1913 rails Mounting tool included Specification: Color: Black