Cutting edge lithium aluminum alloy 2099 nearly twice as strong as 6061 pound for pound 2099 is significantly tougher, more rigid & corrosion resistant than other aluminum alloys.Handguard features: AR-15 platform Type III hardcoat anodized 3 integrated qd swivel mounting points Slim design with an ID of 1.3" OD is 1.5" 15.0" length: 15.0 in width: 1.5 in height: 1.97 in weighs approx. 7.0 oz 13.5" length: 13.5 in width: 1.5 in height: 1.97 in weighs approx. 6.4 oz 11.1" length: 11.1 in width: 1.5 in height: 1.97 in weighs approx. 5.3 oz Barrel nut features: Super aluminum 7068; significantly harder & stronger than 7075 aluminum Type III hardcoat anodized black Ships with wrench & mounting screwsWeighs approx. 1.13 oz included in rail purchase
