Perfect for Semi auto rifle platforms! Details FAST™ is a series of mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A taller optical centerline (mechanical) height provides faster/easier reticle acquisition while wearing electronic ear pro/communication headsets, night vision goggles, gas masks, and plate carriers that can impede a natural shooting position. It allows for more rapid visual processing of the battlefield by promoting a heads-up posture. The FAST™ LPVO Scope Mount series addresses the above-mentioned issues for and the rising popularity of Low Power Variable Optics on the battlefield. The FAST™ LPVO Mount series is available in 30mm and 34mm variants to accommodate all popular commercial and military scopes. It places the scope’s mechanical centerline at 2.05” above the rail. This height provides all the advantages of a tall mount while still being compatible with Clip-On Night Vision Devices (CNVD). Keeping in tradition with the FAST™ line, the LPVO Mount series is more than a traditional scope mount. To accommodate the need for backup red dot sights, the mount accepts an optional Offset Optic Base (sold separately) that can be forward or rearward mounted. Additional Optic Adapter Plates are available with footprints for popular mini red dot sights. These plates have three positions to which they can be mounted on the Offset Optic Base, allowing users to fine tune the placement in relation to the MRDS’s size and host scope’s turret. The modularity allows users to change the mini red dot as they see fit. The FAST™ LPVO Scope Mount is built from 7075-T6 Aluminum and Type III Hardcoat Anodized Black