SG 1 Lens Kleur:Clear Features All steel constructionCase hardened Kleur:Everglade Features All steel constructionCase hardened and finished with a ferritic nitrocarburizing process for extreme resistance to wear and corrosionMounts on any MIL STD 1913 Picatinny STANAG 4694 railWindage adjustable with low profile knob – no tools requiredPositive detents in both the up and down positionsStandard AR sight height when deployed Specifications MBUS Pro – RearWeight a tanto blade length of 135mm Certificated and norms: MIL PRF 32432A Veteran with a single goal – to provide the best protective eyewear to the brave men and women who serve in military and law enforcement