The Sharps Bros Enhanced Grip Module features enhanced trigger-guard geometry with undercut and finger grooves for improved comfort and control. Steeper grip angle than the OEM Echelon & with more pronounced ergonomic curves. OEM Echelon grip angle is ~18Adeg, while the Sharps Bros grip angle is ~13Adeg. Machined from billet 7075-T6 Aluminum. FeaturesM1913 Picatinny accessory railFlared magazine wellDirect replacement of the Springfield OEM standard Echelon grip modulerip module with wood panels weighs approx. 8 ounces (OEM polymer grip module from Springfield is 4 ounces)Seats all Springfield OEM Echelon 9mm magazines. Fits standard Echelon holsters Notes:Fire Control Unit not includedMagazine release assembly not included. Reuse your stock mag release assembly.