Factory extended 20-round 9mm magazine with polymer basepad

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Springfield Armory Magazine Echelon 9mm Luger 20 Round Black 1 Pack Stainless Steel 20RD
The Springfield Echelon 20-round extended magazine adds three rounds over the flush-fit 17-rounder using an extended polymer basepad. The extra length creates a positive reload index for tactical reloads and fills out the grip for shooters with larger hands, while keeping the same stainless steel body and numbered witness holes found on the factory flush-fit magazine.
This is the default extended magazine for home defense, duty backup, and range use. It is not compatible with the Shield Arms +5 extension, which is specifically matched to the 17-round body. For maximum capacity on the 17-rounder, combine with a Shield Arms +5 for 22 rounds; for factory-grade extended capacity, the 20-rounder is the duty-safe choice.

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Add the Springfield Echelon 20-Round Extended Magazine to your build and see how it enhances your platform.