The GG&G MAD (Multiple Aperture Device) BUIS (Back Up Iron Sight) was originally developed to fulfill a request from Naval Surface Warfare for a battle-ready low-profile back up iron sight that provided both a large and small aperture on the same plane and provide co-witness capability with the majority of red dot optics. The MAD BUIS has four apertures, two of each size (so that rotating the aperture disc in either direction will bring the next size into view). All apertures are on the same plane and are thus zeroed to the same point of impact. For this reason, the MAD is sometimes referred to as a flat top sight or a same plane sight. The aperture disc is knurled for easier manipulation in combat environments. The small aperture diameter is 0.073-inch and the large aperture is 0.199-inch in diameter. Windage adjustments are easily made with the GG&G tactile windage knob. The MAD body is CNC manufactured from billet 6061 T6 aluminum alloy and Type III hard coat anodized in a non-reflective black mil-spec finish to provide durability. The stem and aperture disc are made from solid billet 4140 steel and have hardened wear points for long service life. All steel components are black manganese phosphated per mil-spec. The sight stem locks in the up position with a positive mechanical detent system. Once placed in the up position, the sight cannot be folded down without depressing the spring assisted detent release button located on the left side of the sight base. This totally eliminates the possibility of accidentally lowering the multi aperture rear sight.
I'd love for the people voting "red" to post the better deals they've found on this though if they don't think it's a good price
BigKahunaFSU
Loyal Member
posted: Jan. 24, 2013 @ 9:29a
anyone have experience with these. I want to get some flip-up sights, but there are so many to choose from. say . . . this vs. the magpul ones, or this vs anythin.
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