GG&G A2 BACK-UP SIGHT
A redesigned GG&G back-up iron sight (BUIS) provides the operator with an easy-to-install and easy-to-operate flip up rear sight, and includes a locking detent. Improvements include an ergonomic windage knob, a counter-sunk crossbolt, and a streamlined body. The GG&G A2 BUIS is always at the tactical ready once placed in the “up” position. The mount body and sight stem are made of billet 6061 T6 aluminum alloy and Type III hard coat anodized in a non-reflective black mil-spec finish to provide combat durability.  Used by elite armed forces and LE teams worldwide!  For more info call 800-380-2540 or visit gggaz.com