Mission First Tactical Extreme Duty Front Metal Back Up Sight Black. Tucking under other equipment while maintaining a strong secure backup solution when optics and other accessories fail. Front sight post is adjustable for elevation and threaded for AK pattern posts. Detent and Springs are eliminated eliminating friction points.Reduction in hardware increases the robust nature all while minimizing complexity and failure points. Specifications for Mission First Tactical Extreme Duty Front Metal Back Up Sight: Manufacturer: Mission First Tactical Color: Black Fabric/Material: 4140 Steel Gun Rail: Picatinny Features of Mission First Tactical Extreme Duty Front Metal Back Up Sight Low profile bases - Easier to tuck under optics and forward rail mounted equipment. Positive detent in both the up and down positions. AK 47 pattern front sight post (no spring and detent that create friction points). Slim minimalist profile. Manual flip up arm. Nitride coated with corrosion resistant hardware. 1913 Picatinny Rail Mounted Package Contents: Mission First Tactical Extreme Duty Front Metal Back Up Sight Mission First Tactical BUEXD-F: Extreme Duty Front Metal Back Up Sight Black