Features: Full metal constructionAn authentic sight with green fibre optic dot on the top .The sturdy construction is suitable for use on either live firearms or airsoft guns， for non safetyUse with both eyes open to see an illuminated green dot on your target.Material:Aluminum Alloy1X magnificationSize:153*71mm(length*height)Weight:470gPackage includes:1x 1X32 M1 Green Dot Optics Scope 1 X English Instruction Sheet 1 X Battery