{"product_id":"backup-mag-ext-for-glk-19-23-5-fde","title":"Backup Tactical Magazine Extension for Glock 19\/23 +5 – FDE","description":"\u003cp\u003eThe Backup Tactical Magazine Extension adds 5 rounds to factory Glock 19 and Glock 23 magazines, increasing capacity from 15 to 20 rounds (9mm) or 13 to 18 rounds (.40 S\u0026amp;W). This extension gives shooters substantially more ammunition on board without requiring a bulkier full-size frame, making it popular for duty use, competition, and personal defense applications where capacity matters.\u003c\/p\u003e\u003cp\u003eMachined from billet aluminum with a durable Flat Dark Earth anodized finish, this extension replaces the factory baseplate and installs with the original magazine spring and follower. Installation is straightforward for users familiar with Glock magazine disassembly—no gunsmithing required. The extension maintains reliable feeding and adds minimal length to the grip, preserving concealability while delivering meaningful capacity gains.\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, Glock 23 (Gen 1-5)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity Increase:\u003c\/strong\u003e +5 rounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Billet Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Flat Dark Earth 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 (magazine spring and follower not included)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Backup Tactical","offers":[{"title":"Default Title","offer_id":47936961249535,"sku":"BACKG1923MEXT-FDE","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2855772.jpg?v=1766483389","url":"https:\/\/doublestackstore.com\/products\/backup-mag-ext-for-glk-19-23-5-fde","provider":"Double Stack Store","version":"1.0","type":"link"}