The Kinetic Research Group Extended Mag Catch is .080 taller than the standard mag catch that comes on all of the KRG chassis. Shooters who want to tinker with mag height or to use AW mags with KRG chassis can buy this mag catch and cut it down to their desired height FeaturesFits: All KRG chassis with an included mag catchWeight: 0.4ozMaterial: Stainless Steel, Black Oxide Coating