AR-15 / M4 flip up rear sight with locking feature. Dual aperture for long and short range.

•  Low profile
•  Black anodized aircraft grade aluminum
•  Ball bearing pivot detent
•  Automatically locks into position when raised
•  Flip-up posi-lock design to guarantee zero
•  A2 style dual aperture
•  0.65 MOA on M-4 type rifles
•  0.49 MOA on A-4 type rifles