{"product_id":"shield-mag-ext-5-4-for-glk19-23-gry","title":"Shield Arms Magazine Extension +5\/4 for Glock 19\/23 – Gray","description":"\u003cp\u003eThis Shield Arms magazine extension adds 5 rounds to factory Glock 19 magazines or 4 rounds to Glock 23 magazines, increasing total capacity to 20 rounds (9mm) or 17 rounds (.40 S\u0026amp;W). The extension replaces the factory magazine baseplate and uses the existing magazine spring, providing a cost-effective capacity increase for carry, competition, or range use without requiring aftermarket magazine bodies.\u003c\/p\u003e\u003cp\u003eMachined from aluminum with a gray anodized finish, the extension installs using the factory magazine insert and spring. Installation is straightforward for users familiar with Glock magazine disassembly—no gunsmithing required. The aluminum construction adds minimal weight while maintaining durability. Extension includes a new baseplate insert designed to work with factory Glock springs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Magazine Extension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e Glock 19 (9mm) \/ Glock 23 (.40 S\u0026amp;W)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity Increase:\u003c\/strong\u003e +5 rounds (G19) \/ +4 rounds (G23)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Gray Anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In (requires magazine disassembly)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Extension baseplate and insert\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shield Arms","offers":[{"title":"Default Title","offer_id":47940057334015,"sku":"SA-G19-ME-5-GREY","price":37.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2873960.jpg?v=1766551478","url":"https:\/\/doublestackstore.com\/products\/shield-mag-ext-5-4-for-glk19-23-gry","provider":"Double Stack Store","version":"1.0","type":"link"}