YHM - Flip-Up Front Sight, Gas Block Mounted

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YHM - Flip-Up Front Sight, Gas Block Mounted

YHM - Flip-Up Front Sight, Gas Block Mounted.  This durable, all steel sight attaches to any of our railed gas blocks to give you a backup iron sight. The 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).