The dot mount by reptilia is a lightweight slim-line mounting solution for a variety of red dot optics.Machined from billet 7075-t6 aluminum with milspec type iii hard anodized finish the dot mount attaches to any m1913 picatinny rail and offers lower 1/3 co-witness with standard ar15-style back-up sights.Its spring-loaded nitrided steel clamp and mounting bolt simplify the installation process and sit flush with the body of the mount for a low-profile anti-snag design.Compatible with- aimpoint micro r-1 h-1 h-2 t-1 t-2 compm5; sig romeo4 & romeo5; vortex optics crossfire sparc i & ii; primary arms micro dot & advanced micro dot; holosun technologies hs403 & hs503 series.Made in the usa.Model: Dot MountFinish: BlackMaterial: Aluminum/SteelGun Type: AR PlatformMount Type: PicatinnyMount Height: 39mm