Tac 47 Industries > AR-15 Black Rifle Parts/Accessor > AR OPTICS and SIGHTS Tac 47 Industries http://www.tac47industries.com/content-categories/cat-327_332/ar_optics_and_sights.html Tue, 22 May 2012 14:54:46 -0500 en MaTech B.U.I.S. sight The MATECH BUIS is a windage and elevation adjustable flip-up rear iron sight with a low-profile design. Elevation adjustable to 600 meters. http://www.tac47industries.com/content-product_info/product_id-2231/matech_b_u_i_s_sight.html MaTech B.U.I.S. sight http://www.tac47industries.com/images/products/matechbuis.jpg http://www.tac47industries.com/content-product_info/product_id-2231/matech_b_u_i_s_sight.html