Magpul MBUS Back-Up Gen 2 Flip Up Rear Sight - OD Green

• Spring loaded flip up sight
• Spring-loaded flip up sight easily activated from either side or by pressing the top
• Protective wings shield the dual, same plane flip apertures
• Detent knob easily and positively adjusts windage
• Polymer construction provides light weight and resists abuse
• Detent and spring pressure keeps sight in place but allows for unobstructed folding under impact