The Trijicon ACOGA(R) Flattop Mount Fits the 3.5x35, 4x32, 5.5x50 ACOG, the 1x42 Reflex (with ACOG bases), and the 1-6x24 VCOG. The ACOG Flattop mounts optic to picatinny rail with two thumbscrews.Features: Weight: 4.0 oz. Overall Length: 3.50 in. Height of Mount to Optical Axis: 3.5x35, 4x32 and 5.5x50 ACOG = 1.535 in. 1x42 Reflex (with ACOG Bases) = 1.506 in. 1-6x24 VCOG = 1.535 in. #html-body [data-pb-style="62DF828988943"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;}#html-body [data-pb-style="62DF82898894F"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}