What I bought
YHM-9680-A1
This special design has all the same features as our YHM-9680 model but features an A1 style windage wheel with a 1/2 M.O.A. windage adjustment. It prevents accidental adjustment of the sight. To adjust, simply depress the plunger with a bullet tip and rotate the wheel.
YHM-9584
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).