Yankee Hill Machine Co AR-15 Flip Rear Sight- Features of this sight include: a rugged but lightweight design with a steel base, a quick release thumb screw, and aluminum stem. Locks in the deployed position with ease and takes up very little space on the upper receiver.
- 1/2 M.O.A. and comes with a standard rear peep aperture
- Mounts to any picatinny rail
- Designed to co-witness with the standard M16-M4 front sight
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