The GG&G Accucam ACOG QD mount allows the end user to quickly switch between optics and still maintain "on target" . By using the GG&G Accucam QD ACOG mount, the optic can quickly be installed on a dovetail rail in seconds by rotating the Accucam Cam Lever to the locked position. It is fully adjustable to fit Weaver and MIL-STD-1913 dovetails.