Knights Armament KAC rear 600m BUIS, full sized

Perfect for a military correct clone build, like the Mk12 or M4A1 Block 2 - Back Up Iron Sight

KAC's line of Backup Iron Sights are currently in use by the United States Army, Marine Corps and numerous law enforcement agencies worldwide. The highly versatile 200-600 Meter Folding Rear Sight features a finger-adjustable, rotating drum that enables shooters to engage targets from 200 to 600 meters with both speed and accuracy.  

The full-sized 600 meter back up iron sight is used on a number of military rifles from the early years of the Global War on Terror (GWOT), perhaps the most notable for military clone rifle enthusiasts is the Mk12 Mod 1.

Specifications:

Material: Steel
Elevation Adjustable: Yes
Windage Adjustable: Yes

Manufacturer's Part Number:  98474