Monstrum Low Profile Dovetail to Picatinny Mount 11 Slot. Available in multiple sizes: 9 picatinny slots 14 picatinny slots and 17 picatinny slots. The extended rail extends an extra 2 inches over the front of the base allowing for more forward positioning of long eye relief optics. Compatible with dovetail bases typically found on airguns or certain model .22 rimfire rifles. Picatinny rail allows for the mounting of Picatinny or Weaver standard scopes red dots or optics. Machined from 6061 grade aluminum and uses hardened steel Torx mounting hardware to prevent stripping of the bolts. All Monstrum mount and accessory products come with a lifetime warranty. Specifications for Monstrum 11 Slot Low Profile Dovetail to Picatinny Mount: Manufacturer: Monstrum Color: Black Finish: Hard Anodized Fabric/Material: 6061 Aluminum Quantity: 1 Base/Mount Type: Scope Mount Gun Type: Airgun Rifle Length: 4.65 in Weight: 1.5 oz Fit: 11mm Dovetail Base Package Contents: Monstrum 11 Slot Low Profile Dovetail to Picatinny Mount Monstrum RM103-11: Low Profile Dovetail to Picatinny Mount 11 Slot