Shield Arms Magazine Extension Features The Shield Arms +5 Magazine Extension increases a Springfield Echelon magazine s capacity by five rounds giving shooters significantly more rounds on tap for duty competition or home defense use. Its unique easy access floor plate design allows users to quickly reach the internal spring and follower without having to remove the extension from the magazine body entirely. This makes maintenance and cleaning far simpler than extensions that require full disassembly. Index cuts machined into the extension body improve grip helping the shooter seat or strip the magazine confidently even under stress. CNC machined from billet 6061 aluminum and Type 2 anodized in black the extension is built to match the durability of the Echelon s factory magazine components. It is compatible with OEM magazine springs so no special spring purchase is required to complete the installation. All necessary screws and hex keys are included and a pre-installed option is available on an OEM magazine for those who prefer a ready to use setup. Proudly made in the USA and backed by a lifetime warranty this Shield Arms extension is a dependable upgrade for any Springfield Echelon owner wanting more capacity. Shield Arms Magazine Extension Specifications Manufacturer: Shield Arms Model: Magazine Extension Color: Black Anodized Material: Aluminum Capacity Increase: +5 Rounds Compatible Hosts: Springfield Echelon Available At: GrabAGun