Magpul MBUS 3 Back-Up Front Sight - Black

• Full featured spring loaded flip up sight
• Tool-less elevation adjustment and dual width enhanced front sight post
• 0.44" high when folded and 1.15" wide at widest point
• Standard AR-height when deployed
• Impact resistant polymer construction
• Calmps to most MIL-STD-1913 picatinny rails
• Made in the U.S.A.
• Tool-less Elevation Adjustment
• Ambidextrous Push Button Deploy