Bobro Engineering Dual Lever Precision Optic Mount 35mm Rings Black. Both tactical and law enforcement officials count on these Rifle Scope Mounts and Rings from Vortex - and so do we. These Klarra AR Precision Optic Mounts are designed to handle heavy optics and high recoil forces. That's why these mounts feature an extended base that provides proper eye relief when using a non-monolithic rail. That's why Vortex thought ahead and constructed the Dual Lever series of Optics Mounts as tough as can be. This incredibly strong Vortex Optics Dual Lever Rifle Scope Mounting System allows you to attach a scope to your rifle while mitigating recoil and creating a safer shooting experience for all involved. By mitigating recoil forces you ensure accuracy and hit more shots on target. Plus you can use this device with any 1913 Picatinny rails - even if they're out of spec. You can count on this innovative mounting system to hold zero even when you're out in the field. You can install this scope on your weapon regardless of your needs and this mounting system is proof of concept backed by US Patent 8567105. The dual levers engage with the rail with a simple one-handed motion and the locking action engages with the locking bar with the same motion. That's how the Dual Lever Precision Optic Mount w/ 35mm Rings ensures precise sighting of your Rifle Scope even while experiencing high recoil forces. That's how the Klarna AR Precision Dual Lever Mount w/ 35mm Rings becomes an integral part of your firearm. The benefits of using this incredible mounting system outweigh the negative effects of heavy recoil on a rifle - it generates a domino effect that extends throughout the lifespan of the product. That's right the Dual Lever Precision Optic Mount w/ 35mm Rings brings heavy duty quality and performance without any risk of cocking or failure. Specifications for Bobro Engineering Dual Lever Precision Optic Mount w/35mm Rings: Manufacturer: Bobro Engineering Height: 1.5 in Fabric/Material: 6061-T6 Aluminum Color: Black Distance Between Rings: 2.975 in Tube Diameter: 35 mm Length: 2 in Weight: 12 oz Width: 0.99 in Condition: New Finish: Type 3 Hard coat black anodizing Features of Bobro Engineering Dual Lever Precision Optic Mount w/35mm Rings: The Precision Optic Mount features the Patented BLAC lever system which was designed around the following parameters: Must be compatible with any 1913 Specification Rail to include systems that are out of specification (within reason) and this includes Weaver rails. Must be completely tool and user adjustable free It needs to be 100percent self contained and mate securely to any rail without the user having to tailor the pressure/engagement position. Must lock with enough pressure to positively attach any device or optical instrument to a rail without movement static or dynamic forces not withstanding. The rail must not experience any deformation due to user error This must include synthetic (plastic/polymer/composite) rail systems. Auto Index capability The device must also index parallel to the bore The unit must always repeat the forward shift (recoil forces direction of influence) not only to maximize zero repeatability but to take this step of installation out of the users initial mounting sequence Index must be redundant. Unit must not shoot loose due to improper mounting or a mechanical bottoming out. The system must incorprate a safety that prevents the lever from being accidentally opened The safety must be able to be manipulated in conjunction with the lever rotation so that only one hand is required to open it. The unit will utilize constant force to ensure required pressure in all conditions The force must be substantial to prevent any shift forward/aft left/right. The pressure must be applied in a linear direction centered in the main body to prevent cocking of the mount. It must be easy to manipulate by gloved or fatigued hands. It must be extremely robust and withstand shock and impact to the system housing. There were others but by listing them we would compromise our trade secrets. Included Accessories: Instruction and Toolkit Package Contents: Bobro Engineering Dual Lever Precision Optic Mount w/35mm Rings Bobro Engineering B10-300-350: Dual Lever Precision Optic Mount 35mm Rings Black