Tyrant Designs 9mm +5 Magazine Extension for Springfield Echelon Pistols

The Tyrant DesignsA(R) 9mm +5 Magazine Extension for Springfield Echelon(TM) Pistols is designed to increase the capacity of Springfield ArmoryA(R) Echelon 15 and 17-round magazines by +5 rounds. This magazine extension is CNC machined from T6061 aircraft aluminum with a corrosion-resistant hard-coat anodized finish. Featuring tool-less installation, this mag extension features proprietary NoBak plunger technology that ensures the basepad and mag extension remain securely attached. The included power spring is 110% stronger than the OEM magazine spring and this magazine extension is designed for consistent delivery of the last round and to maintain slide hold-back after the last round is fired. Backed by a lifetime warranty.NOTE: Does NOT fit the 10-round magazine.