TheAT3 Tactical 45 Offset sighting instruments for the AR15 are designed for shooters who want to instantly switch from an optoelectronic sight to mechanical instruments when shooting. The 45° Offset sighting instruments are used at times when the target is so close to us that the optical sight is no longer functional and effective. The side sighting instruments are simple and convenient to use. It is enough to slightly rotate the weapon on the shoulder and align the musket with the sights, just as when aiming from a weapon equipped with mechanical aiming instruments. Such functionality makes the AT3 Tactical 45 Offset sight ing instruments popular among sport shooters, soldiers and uniformed service officers. The gauges are made with precision CNC technique from 6061 aircraft aluminum, which contributes to their light weight and resistance to harsh conditions. The sight has two settings for short and medium range shooting. The rifle scope is horizontally adjustable with a moled ring, making it easy to use the sight with shooting gloves. The AT3 Tactical Offset musket, like the classic A2, has a post with adjustable height (key required). The AT3 Tactical 45 Offset side sighting instruments are an ideal value for money compromise. Features of AT3 Tactical 45 Offset sighting instruments for AR15: aluminum construction guarantees strength and durability Mil-Spec hard anodizing finish Muzzle with adjustable height post horizontally adjustable stock two settings for fast and precise shooting designed for right-handed shooters (optional for left-handed shooters) mounting on a standard Picatinny rail product covered by manufacturer's lifetime warranty