Product Description Specs Material: AL 6061-T6 Center Height: 1.93 inches Dimension: 2.26 x 1.34 x 1.70 inches Weight: 1.76 oz Mounting Style: Picatinny Compatibility Aimpoint: Micro T-2, H-2, T-1, H-1, CompM5 Holosun: HE403, HE503, HE515, HE530, HS403, HS503, HS515 Sig Sauer: ROMEO4 (H/S/T), ROMEO5 WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov/product Customer Reviews