The Accucam Scout Length Mounting Base was designed to mount easily onto the integral rail of the AR15/M16 flat top receiver and interface with our MAD or both of our A2 Style BUIS flip-up rear sights. Manufactured to MIL-SPEC-1913 the Accucam Scout Length Mounting Base raises the line of sight by ½-inch, offering a proper cheek weld when optical devices are attached. The detachable scope mount rail extends two inches beyond the end of the receiver and clears the M4 forearm. It was developed to accommodate "scout" type scopes, long body scope tubes, and night vision compatible red dot sights with night vision monoculars mounted to their rear. Once the optic is mounted, the integrated Accucam Quick Detach Lever System provides the shooter with the ability to quickly remove the scope in order to utilize other optics as the mission may require, and have the confidence of 1/2 MOA repeatability upon re-installation. As with all GG&G products, quick detachable scope rings are designed and manufactured to meet the rigors of combat and professional use. The Accucam Scout Length Mounting Base is manufactured from solid billet 6061 T6 aluminum alloy and has a Type III hard coat anodized matte black mil-spec finish. All edges have been dehorned to protect the operator. The base can be quickly installed on a dovetail rail in seconds by rotating the Accucam Cam Lever to the locked position. It can then be quickly removed by rotating the Accucam Cam Lever to the unlocked position. Unlike many QD systems, it is fully adjustable to fit Weaver and MIL-STD 1913 dovetails. The patent pending design allows you to adjust the tension to accommodate out of spec or worn dovetails. In tests, the Accucam Locking Lever System has shown to be repeatable to 1/2 MOA. The unique finger loop lever is easily operated, even with a gloved hand and the rounded design is ergonomic and virtually snag proof. The Accucam mechanism is manufactured from solid billet 4140 steel and manganese phosphated matte black per mil-spec.