{"product_id":"mission-first-tactical-extreme-duty-30rd-223-rem-5-56x45mm-ar-15-m4-black-polymer-window-magazine","title":"Mission First Tactical Extreme Duty 30rd 223 Rem\/5.56x45mm AR-15\/M4 Black Polymer Window Magazine","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eMission First Tactical Extreme Duty\u003c\/span\u003e\u003c\/strong\u003e (EXD) 30-round magazine is purpose-built for the \u003cstrong\u003eAR-15\/M4\u003c\/strong\u003e platform and chambered in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e223 Rem \/ 5.56x45mm NATO\u003c\/span\u003e\u003c\/strong\u003e. Designed as an enhanced-duty upgrade over the standard STANAG-pattern magazine, the EXD is molded from Mission First Tactical's next-generation long glass fiber \u003cstrong\u003epolymer\u003c\/strong\u003e for improved strength, durability, and corrosion resistance in hard-use environments.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis \u003cstrong\u003ewindowed\u003c\/strong\u003e variant uses transparent magazine windows to give a quick visual confirmation of ammunition level and round count. Internally, the magazine runs a long-life \u003cstrong\u003eUSGI-spec stainless steel spring\u003c\/strong\u003e paired with a \u003cstrong\u003efour-way anti-tilt self-lubricating follower\u003c\/strong\u003e, supporting reliable feeding across the 30-round capacity. External ribs front and rear provide positive gripping surfaces for insertion and extraction.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFinished in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eblack\u003c\/span\u003e\u003c\/strong\u003e, the EXD is engineered for the AR15\/M4 and is also compatible with a wide range of non-AR15\/M4 platforms that accept the standard STANAG 5.56 magazine pattern. Made in the \u003cstrong\u003eUSA\u003c\/strong\u003e by Mission First Tactical.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mission First Tactical","offers":[{"title":"Default Title","offer_id":54999202922818,"sku":"133001","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_5e065d65-b09b-4b57-86e2-497354587504.png?v=1784373124","url":"https:\/\/centerfiresystems.com\/products\/mission-first-tactical-extreme-duty-30rd-223-rem-5-56x45mm-ar-15-m4-black-polymer-window-magazine","provider":"Centerfire Systems","version":"1.0","type":"link"}