{"product_id":"kriss-magex2-kit-for-g21-17rd-3pk-1","title":"KRISS MagEx2 Extension Kit for Glock 21 – +17 Rounds (3-Pack)","description":"\u003cp\u003eThe KRISS MagEx2 Kit converts factory Glock 21 magazines into extended 30-round capacity magazines. Designed for shooters who need higher round counts without purchasing entirely new magazines, this kit includes three extension bodies that replace the factory baseplate and spring. Each MagEx2 extension adds 17 additional rounds to a standard 13-round G21 magazine.\u003c\/p\u003e\u003cp\u003eThe extension bodies are constructed from reinforced polymer with a matte black finish that matches OEM Glock aesthetics. Installation is straightforward: remove the factory baseplate and spring, install the provided MagEx2 spring and follower, then attach the extension body. No permanent modification to the original magazine tube is required. The extended magazines will protrude significantly from the grip—verify compatibility with your carry or competition rig before use.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Magazine Extension Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e Glock 21 (.45 ACP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity Increase:\u003c\/strong\u003e +17 rounds (13rd to 30rd total)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Reinforced Polymer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Matte Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In (no gunsmithing required)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e 3 extension bodies, 3 springs, 3 followers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KRISS USA, Inc","offers":[{"title":"Default Title","offer_id":47943829061887,"sku":"KRKVA-MX2K45BL01","price":85.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2142690.jpg?v=1766602942","url":"https:\/\/doublestackstore.com\/products\/kriss-magex2-kit-for-g21-17rd-3pk-1","provider":"Double Stack Store","version":"1.0","type":"link"}