Medium Profile Design: This aluminum alloy Rail Mount features 8 slots and a 2 cm front extension, allowing you to adjust the sight position according to your preference for sight alignment. Durable Material: This extended Rail Mount is made of aircraftgrade aluminum for strength and durability, and is anodized to a matte black appearance to ensure longterm use without fading. Easy Installation and Fixing: This Rail Mount can be adapted to all standard Picatinny rails and is firmly locked with two screws and nuts. The installation process is simple and fast, allowing you to easily fix the device. Adjustable Height Design: The Rail Mount has an adjustable height function, which is gradually increased by two locking screws to ensure that the optical centerline height reaches 0.83 inches (210 mm), improving aiming speed and accuracy. Use scenario 1: Attach to a standard Picatinny rail on a rifle, carbine, or airsoft gun to position an optic for eye relief and faster target acquisition. Use scenario 2: Ideal for competition or tactical setups where you need to adjust the sight height to match different optics or shooting positions. Use scenario 3: Suitable for hunting or training applications where durability and consistent sight alignment on a Picatinny rail are important for reliable performance.