{"product_id":"promag-glka21-9mm-luger-20-rd-black-polymer-pistol-magazine-for-glock-17-19-26","title":"ProMag GLKA21 9mm Luger 20-Rd Black Polymer Pistol Magazine for Glock 17\/19\/26","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eProMag GLKA21\u003c\/span\u003e\u003c\/strong\u003e is a \u003cstrong\u003e20-round\u003c\/strong\u003e extended-capacity \u003cstrong\u003e9mm Luger\u003c\/strong\u003e pistol magazine built specifically for the \u003cstrong\u003eGlock 17\u003c\/strong\u003e, \u003cstrong\u003eGlock 19\u003c\/strong\u003e, and \u003cstrong\u003eGlock 26\u003c\/strong\u003e (and other compatible 9mm Glock-pattern frames).\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFeaturing a \u003cstrong\u003eblack\u003c\/strong\u003e finish and a magazine body constructed of a \u003cstrong\u003eproprietary DuPont Zytel based polymer\u003c\/strong\u003e, this detachable double-stack magazine offers Glock owners an affordable way to expand their magazine inventory for range training, competition, and high-volume practice sessions. The \u003cstrong\u003e20-round\u003c\/strong\u003e capacity provides significantly more rounds on tap compared to standard 10- or 15-round factory magazines, reducing reload interruptions during extended shooting sessions.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eProMag has been a long-established manufacturer of firearm magazines and accessories, offering spare and replacement magazines for a wide range of popular handgun and rifle platforms at a value-oriented price point. The GLKA21 is engineered to factory specifications for reliable feeding with 9mm Luger ammunition and includes a \u003cstrong\u003efull-length steel internal reinforcement\u003c\/strong\u003e, a steel spring, and a polymer follower for consistent performance. It is designed as a drop-in spare or replacement for Glock-pattern 9mm pistol frames, giving shooters a budget-friendly option for building out their magazine collection.\u003c\/span\u003e\u003c\/p\u003e","brand":"ProMag","offers":[{"title":"Default Title","offer_id":55044656955714,"sku":"174287","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_d015d452-1388-4640-b050-a3611c1b155d.png?v=1784695733","url":"https:\/\/centerfiresystems.com\/products\/promag-glka21-9mm-luger-20-rd-black-polymer-pistol-magazine-for-glock-17-19-26","provider":"Centerfire Systems","version":"1.0","type":"link"}