Check the listing for details. Primary Arms SLX Flip-to-Side Magnifier Mount 1.41" - 2 Bolt Interface. Color: Black, Condition: New. Listed at 79.99 USD. Features: Hardcoat anodized 6061-T6 Aluminum construction Standard 1.41" optical centerline, Includes spacers for 1.535" and 1.64" heights Compatible with direct bolt-on style magnifiers Dual crossbolts made from steel alloy Low profile and lightweight at 2.5 ounces The Primary Arms SLx Flip-To-Side Magnifier Mount is designed to place your magnifier at 1.41 inches above the top of the picatinny rail. Additionally, it includes spacers allowing for a 1.535" and 1.64" centerline height, so you can easily line it up with your optic. It features a low profile design manufactured from 6061-T6 aluminum with two steel alloy crossbolts that apply up to 55 in-lbs or torque to ensure a rock solid mount. This magnifier mount also utilizes a direct bolt system to interface with the magnifier instead of a traditional ring design in order to save weight, increase strength, and eliminates the possibility of the magnifier slipping or twisting in the mount. EXPORT CONTROLLED ITEMS: These items are controlled for export and may require an export license from the U.S. Government. Buyer acknowledges that Buyer is responsible for obtaining all export licensing authorizations and filing all export documents prior to export from the United States.