The Troy Industries SSIGFBSROFT BattleSight Rear Sight Folding is designed for effortless installation and deployment. It does not use levers or springs and positions the apertures at the factory height. This sight uses a stainless steel cross-locking system to keep the sight upright and the zeroing unaffected under heavy use. The sight folds away when not in use to a profile of 0.460 with a simple push of a button. It features a zero-canting attachment system compatible with all military and aftermarket receivers. Each click provides 0.50 MOA adjustment, and no tools are required. The SSIGFBSROFT is made from stainless steel with MIL-SPEC Type III hard anodized coating and includes T6 aircraft aluminum components, finished in Flat Dark Earth.