Shield Arms S15 Magazine Magazine Extension Features The Shield Arms Magazine Extension is purpose built to work with Gen 2 and Gen 3 Shield Arms S15 magazines adding a full 10 rounds of capacity to each magazine it is installed on. The extension ships with a 15 coil plus power spring matched to the added capacity so feeding stays consistent from the first round to the last. Index cuts machined into the extension body increase grip when the magazine is drawn quickly from a pouch under time pressure. Because it is made from billet 6061 aluminum with a Type 2 anodized finish the extension holds up to the repeated insertion and removal that a duty or competition magazine sees. The floor plate design is built around easy access so the spring and follower can be reached directly without removing the extension from the magazine body for routine maintenance. This saves time when cleaning or troubleshooting a magazine between range sessions or before carry. The extension is proudly made in the USA and fits the Shield Arms S15 magazine only so compatibility is never in question for an S15 owner. Backed by a lifetime warranty and the Spring for Life guarantee the Shield Arms Magazine Extension is a durable American made upgrade for any shooter who runs the S15 platform. Shield Arms S15 Magazine Magazine Extension Specifications Manufacturer: Shield Arms Model: Magazine Extension Capacity Increase: +10 Rounds Color: Black Anodized Material: Aluminum Style: Extended Compatible Hosts: Shield Arms S15 Magazine Available At: GrabAGun