Trijicon Quick Release Mount, Fits 3.5X, 4.5X, 5.5X ACOGs, 1-6X VCOG, and 1X42 Reflex with ACOG Base AC12033 This mount fits all VCOG's, the 1x42 Reflex (with ACOG base), and the 3.5x, 4x, and 5.5x ACOG's. The AC12033 quick release mount utilizes a single lever system. It features the patented BLAC lever system which requires no manual adjustments to attain a proper, rock solid engagement on a 1913 picatinny rail.