Introducing The first of its kind, their all aluminum Echelon grip with all the Icarus features you would expect. Icarus has upgraded the already great ergonomics of the Echelon to give you the advantage you would come to expect from their ACE lineupFeatures :Made of billet 7075 AluminumAggressive 360 degree grip textureBackstrap hump to fill your palm and aid in a more natural point of aimFlipped beaver tail to ensure a proper high gripThumb ledge for support thumbDouble undercut trigger guardWeight 7.1 oz. (OEM 3.1oz)Will accept two 1/4x3 tungsten rods for added weight (sold separately)Made for the full size Echelon slide and will accept all OEM magazines