NcStar AR-15 45 Degree Offset Flip-Up Rear Sight Black

45 Degree offset folding Rear 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 & Small) Rear sight is fully adjustable for windage also with a Large windage knob
Rear sight folds back flat for a lower profile and will fit under the majority of scopes out in the market
Weight: 2.6 oz.