Aimsports AR-15/M4 flip up rear sight feature dual aperture for long and short range, ball bearing pivot detent, automatically locks into position when raised, flip-up posi-lock design to guarantee zero and A2 style dual aperture, Small Aperture: 0.070", Large Aperture: 0.200". 0.65 MOA on M-4 type rifles and 0.49 MOA on A-4 type rifles.
Specifications:

Type	Flip Up Front/Rear
Frame Material	Aluminum
Frame Color	Black
Firearm Fit	AR-15
Base Configuration
Style	Folding
Front Material	Aluminum
Rear Material	Aluminum
Front Color	Black
Rear Color
Rail Size
Windage Adjustment
Elevation Adjustment
Fiber Diameter
Firearm Type