With the development of their Accucam Quick Detach Locking Lever System, GG&G is now able to manufacture a full line of QD mounts that allow the primary optic to be attached and detached from the weapons system. This provides the shooter a degree of tactical flexibility highly valued in the urban combat environment. The GG&G Accucam Quick Detach ACOG mount allows the end user the ability to quickly switch between optics and still maintain on target repeatability. The Trijicon ACOG is a rugged optic and has an excellent reputation for durability, however should the ACOG fail, end users can quickly remove the ACOG and deploy the weapon&';s back up iron sight.Features : Easily installs Accucam Locking Lever System has shown to be repeatable to 1/2 MOA Solid billet 6061-T6 aluminum alloy Made in the USA