{"product_id":"m-p-9-40-mag-extension-gry","title":"Warne M\u0026P 9\/40 Magazine Extension – Gray","description":"\u003cp\u003eThe Warne M\u0026amp;P 9\/40 Magazine Extension adds capacity and grip length to factory Smith \u0026amp; Wesson M\u0026amp;P magazines. Designed for M\u0026amp;P 9mm and .40 S\u0026amp;W pistols, this extension provides additional rounds and extends the grip surface for better control during reloads and shooting. The gray finish matches common M\u0026amp;P color schemes.\u003c\/p\u003e\u003cp\u003eConstructed from durable polymer, this extension installs on compatible M\u0026amp;P magazines without permanent modification. It maintains reliable feeding and function while increasing magazine capacity. The extension typically adds 5 rounds to 9mm magazines and 4 rounds to .40 S\u0026amp;W magazines, depending on factory magazine length. Installation requires disassembly of the magazine base plate.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Magazine Extension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e Smith \u0026amp; Wesson M\u0026amp;P 9mm and .40 S\u0026amp;W pistols\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polymer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity Increase:\u003c\/strong\u003e +5 rounds (9mm) \/ +4 rounds (.40 S\u0026amp;W), varies by base magazine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Competition, range training, increased capacity carry (check local laws)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Verify magazine capacity laws in your jurisdiction before use. Extended magazines may not be legal in all areas and may affect pistol concealment.\u003c\/p\u003e","brand":"Warne","offers":[{"title":"Default Title","offer_id":47944255242495,"sku":"WNMESW-5\/4GR","price":44.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/greycz75magextensionbf89.jpg?v=1766634813","url":"https:\/\/doublestackstore.com\/products\/m-p-9-40-mag-extension-gry","provider":"Double Stack Store","version":"1.0","type":"link"}