YHM Gas Block Mounted Flip Sight Matte Black

All steel sight attaches to any of our railed gas blocks to give you a backup iron sight. Sight folds out of the sight line with the push of a button and flips and locks in the deployed position with ease. Mounts quickly and easily with the included thumb screw. Accepts all standard AR sight posts and hardware (included). NOTE: this is not compatible with same plane/forearm mounted sight systems; must be attached to railed gas block.