NcStar 45-Degree Offset Fully Adjustable Flip-Up Iron Sight

45 Degree offset folding sight perfect for AR15 shooters looking for offset iron sights
Fits onto receiver height Weaver, Picatinny, MIL-STD 1913 type rails
The A2 Dual Aperature (Large and Small) Rear sight is fully adjustable for windage, also with a Large windage knob
Sight folds back flat for a lower profile and will fit under the majority of scopes out in the market
Weight: 2.6 oz.