{"product_id":"backup-mag-ext-for-glk-19-23-5-blu","title":"Backup Tactical Magazine Extension for Glock 19\/23 +5 – Blue","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). Designed for shooters who want extended capacity without a full-length competition magazine, this extension maintains a manageable grip length while providing meaningful additional ammunition on tap. Suitable for range use, competition, or home defense applications where capacity matters.\u003c\/p\u003e\u003cp\u003eMachined from lightweight aluminum with a blue anodized finish, this extension installs with basic tools and requires the factory magazine spring and follower (no additional spring included). Installation involves disassembling the magazine, sliding the extension onto the magazine tube, and reassembling with the existing components. Some fitting or spring tension adjustment may be required for reliable feeding. A gunsmith or experienced user should handle installation if unfamiliar with magazine assembly.\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\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 Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Blue Anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e User Install with Basic Tools (magazine disassembly required)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Extension body only (uses factory spring and follower)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Backup Tactical","offers":[{"title":"Default Title","offer_id":47936960430335,"sku":"BACKG1923MEXT-BLU","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2855771.jpg?v=1766483366","url":"https:\/\/doublestackstore.com\/products\/backup-mag-ext-for-glk-19-23-5-blu","provider":"Double Stack Store","version":"1.0","type":"link"}