Icarus Precision ACE Echelon Full Magwell Black. We have upgraded the already great ergonomics of the Echelon to give you the advantage you would come to expect from our ACE lineup Specifications for Icarus Precision ACE Echelon Full Magwell: Manufacturer: Icarus Precision Color: Black Finish: Matte Fabric/Material: 7075 Aluminum Gun Make: Springfield Armory Gun Model: Springfield Armory Echelon Condition: New Features of Icarus Precision ACE Echelon Full Magwell Made of billet 7075 Aluminum. Aggressive 360 degree grip texture. Backstrap hump to fill your palm and aid in a more natural point of aim. Flipped beaver tail to ensure a proper high grip. Thumb ledge for support thumb. Double undercut trigger guard. Weight 7.1 Oz. (OEM 3.1Oz) Will accept two 1/4''x 3'' tungsten rods for added weight (sold separately). Made for the full size Echelon slide and will accept all OEM magazines. 1913 picatinny rail. Package Contents: Icarus Precision ACE Echelon Full Magwell What firearm models does the manufacturer say Icarus Precision ACE Echelon Full Magwell is compatible with? The manufacturer suggests that Icarus Precision ACE Echelon Full Magwell is compatible with Springfield Armory EchelonIcarus Precision IP616132: ACE Echelon Full Magwell Black