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: Installs easily Accucam locking lever system has shown to be repeatable to 1/2 MOA Solid billet 6061 T6 aluminum alloy Made in the USA