{"id":369827,"date":"2022-11-04T15:00:40","date_gmt":"2022-11-04T21:00:40","guid":{"rendered":"https:\/\/gunmagwarehouse.com\/blog\/?p=369827"},"modified":"2026-01-09T12:43:11","modified_gmt":"2026-01-09T18:43:11","slug":"the-truth-about-sig-mpx-mags","status":"publish","type":"post","link":"https:\/\/gunmagwarehouse.com\/blog\/the-truth-about-sig-mpx-mags\/","title":{"rendered":"The Truth About Sig MPX Mags"},"content":{"rendered":"<p>The Sig Sauer MPX is a performance-ready sub-gun with substance. Since its introduction in 2015, the MPX has enjoyed military endorsements\u2014and a wink and a nod from car gun folks everywhere. But one novel aspect of the design that some enthusiasts loved to hate was the MPX&#8217;s translucent 30-round magazines. Those magazines were produced by Lancer for Sig. Some questioned the build quality and the price.<\/p>\n<p>Fast forward to 2022 and the MPX is on its second generation. In the time between, Thril came on the market to produce their <a href=\"https:\/\/gunmagwarehouse.com\/thril-gen-2-sm9-mpx-9mm-35-round-magazine.html\">SM9 35-round magazine specifically for the Sig<\/a>. Now Sig themselves have released <a href=\"https:\/\/gunmagwarehouse.com\/sig-sauer-mpx-9mm-35-round-magazine.html\">a 35-round magazine of their own<\/a>. Which should you choose? Jeremy from Gun Mag Warehouse digs into the details.<\/p>\n<p><span class=\"text-center article-iframe d-flex flex-wrap justify-content-center\"><iframe title=\"The TRUTH about Sig MPX Magazines\" width=\"640\" height=\"360\" data-src=\"https:\/\/www.youtube.com\/embed\/4_4RRsHdd7U?feature=oembed&enablejsapi=1\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen src=\"about:blank\" class=\"lazyload\" data-load-mode=\"0\"><\/span><\/iframe><\/p>\n<h2>Side by Side<\/h2>\n<p>Side by side, the Sig factory magazine and Thril SM9 G2 magazine are identical in construction. Both have opaque, rather than translucent, polymer construction. The locking surfaces that interface with the magazine release of the MPX are located in the same place and have the same configuration. Both use steel feed lips. Indeed, the only obvious difference is the Sig logo on the factory magazine. The Thril magazine is OEM in most respects.<\/p>\n<figure id=\"attachment_372405\" aria-describedby=\"caption-attachment-372405\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-full wp-image-372405 lazyload\" data-src=\"https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/MPX-Magazines-Thril-Sig-Sauer.jpg\" alt=\"MPX magazines side by side from Sig Sauer and Thril \" width=\"800\" height=\"600\" data-srcset=\"https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/MPX-Magazines-Thril-Sig-Sauer.jpg 800w, https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/MPX-Magazines-Thril-Sig-Sauer-300x225.jpg 300w, https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/MPX-Magazines-Thril-Sig-Sauer-768x576.jpg 768w, https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/MPX-Magazines-Thril-Sig-Sauer-150x113.jpg 150w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/600;\" \/><figcaption id=\"caption-attachment-372405\" class=\"wp-caption-text\">The Sig magazine (left) is a near carbon copy of the Thril magazine (right).<\/figcaption><\/figure>\n<p>If you squint, however, there is one more difference. The Sig magazine has a thicker polymer base plate. The Thril magazine&#8217;s polymer base plate is reinforced with rubber. Both height and width on both base plates are identical and use the same push-button for magazine assembly and disassembly.<\/p>\n<figure id=\"attachment_369833\" aria-describedby=\"caption-attachment-369833\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"wp-image-369833 size-full lazyload\" data-src=\"https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/thril-magazine-baseplate.jpg\" alt=\"The base plate of the Sig MPX magazine next to the Thril MPX magazine\" width=\"800\" height=\"600\" data-srcset=\"https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/thril-magazine-baseplate.jpg 800w, https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/thril-magazine-baseplate-300x225.jpg 300w, https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/thril-magazine-baseplate-768x576.jpg 768w, https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/thril-magazine-baseplate-150x113.jpg 150w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/600;\" \/><figcaption id=\"caption-attachment-369833\" class=\"wp-caption-text\">The base plate of the Sig MPX magazine (left) next to the Thril. (right)<\/figcaption><\/figure>\n<h3>Which Should You Choose?<\/h3>\n<p>Jeremy took both the Sig and Thril magazines for a range workout and found them both to be trouble free. While we mustn&#8217;t hang our hat on a particular brand or anecdotal test to use untested gear in our own guns. In the debate between choosing factory and aftermarket magazines, the line is often blurred. In the case of <a href=\"https:\/\/gunmagwarehouse.com\/magfinder\/sig-sauer-mpx\">the Sig Sauer MPX<\/a>, the Thril magazine was an aftermarket option that was so good it became OEM. Both magazines are durable and use steel feed lips instead of polymer; the latter of which might warp can cause feeding problems. And you are not gaining any additional capacity by going from one to the other. You get 35 rounds.<\/p>\n<p>If forced to choose, however, the Thril might be a better buy. If function is indeed identical, ancillary features and price become more important. In my own experience, magazines with rubberized baseplates survive abuse more readily, where naked polymer might crack open on concrete floors\u2014especially if a partially or fully-loaded magazine is dropped. If you are working around a square range or an urban setting, the Thril magazine might continue to work if you get too clumsy. And a quick look at GunMag Warehouse inventory shows that the Thril can do that at 4\/5 of the price of a functional magazine with the Sig logo slapped on it.<br \/>\n\t<div class=\"shadow-md bg-white rounded-1 p-4 magento-wrapper\">\n        <div>\n            <h2 class=\"fw-bold\">Shop This Article<\/h2>\n        <\/div>\n        <div class=\"container p-2\">\n            <ul class=\"products list-unstyled row\">\n                \n<li class=\"product-card col-12 col-sm-6 col-lg-3 p-1\">\n    <div class=\"card h-100 py-2 px-3 rounded-0\">\n\t\n\t\t<div class=\"image p-2 my-0 my-sm-3 text-center\">\n\t\t\t<a href=\"https:\/\/gunmagwarehouse.com\/promag-sig-mpx-9mm-50-round-drum-magazine.html\">\n\t\t\t\t\t\t<img\n\t\t\tdata-src=\"https:\/\/gunmagwarehouse.com\/media\/catalog\/product\/p\/r\/promag-sig-mpx-9mm-50-round-drum-magazine.png\"\n\t\t\talt=\"ProMag Sig MPX 9mm 50-Round Drum Magazine\"\n\t\t\twidth=\"150\"\t\t\theight=\"150\"\t\t src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\n\t\t\n\t\t<a class=\"text-dark mb-2 mb-sm-4 lh-sm fw-bold\" href=\"https:\/\/gunmagwarehouse.com\/promag-sig-mpx-9mm-50-round-drum-magazine.html\">ProMag Sig MPX 9mm 50-Round Drum Magazine<\/a>\t\n\t\t\t\t\t<div class=\"mt-auto lh-sm price\">\n\t\t\t<div class=\"base-price\">\n                $70.99            <\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\n\t    <\/div>\n<\/li>\n\n<li class=\"product-card col-12 col-sm-6 col-lg-3 p-1\">\n    <div class=\"card h-100 py-2 px-3 rounded-0\">\n\t\n\t\t<div class=\"image p-2 my-0 my-sm-3 text-center\">\n\t\t\t<a href=\"https:\/\/gunmagwarehouse.com\/promag-sig-sauer-mpx-9mm-40-round-magazine.html\">\n\t\t\t\t\t\t<img\n\t\t\tdata-src=\"https:\/\/gunmagwarehouse.com\/media\/catalog\/product\/p\/r\/promag-sig-sauer-mpx-9mm-40-round-magazine_1.jpg\"\n\t\t\talt=\"ProMag Sig Sauer MPX 9mm 40-Round Magazine\"\n\t\t\twidth=\"150\"\t\t\theight=\"150\"\t\t src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\n\t\t\n\t\t<a class=\"text-dark mb-2 mb-sm-4 lh-sm fw-bold\" href=\"https:\/\/gunmagwarehouse.com\/promag-sig-sauer-mpx-9mm-40-round-magazine.html\">ProMag Sig Sauer MPX 9mm 40-Round Magazine<\/a>\t\n\t\t\t\t\t<div class=\"mt-auto lh-sm price\">\n\t\t\t<div class=\"base-price\">\n                $18.99            <\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\n\t    <\/div>\n<\/li>\n\n<li class=\"product-card col-12 col-sm-6 col-lg-3 p-1\">\n    <div class=\"card h-100 py-2 px-3 rounded-0\">\n\t\n\t\t<div class=\"image p-2 my-0 my-sm-3 text-center\">\n\t\t\t<a href=\"https:\/\/gunmagwarehouse.com\/sig-sauer-mpx-9mm-35-round-magazine.html\">\n\t\t\t\t\t\t<img\n\t\t\tdata-src=\"https:\/\/gunmagwarehouse.com\/media\/catalog\/product\/s\/i\/sig-sauer-mpx-9mm-35-round-magazine-2.png\"\n\t\t\talt=\"Sig Sauer MPX 9mm 35-Round Magazine\"\n\t\t\twidth=\"150\"\t\t\theight=\"150\"\t\t src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\n\t\t\n\t\t<a class=\"text-dark mb-2 mb-sm-4 lh-sm fw-bold\" href=\"https:\/\/gunmagwarehouse.com\/sig-sauer-mpx-9mm-35-round-magazine.html\">Sig Sauer MPX 9mm 35-Round Magazine<\/a>\t\n\t\t\t\t\t<div class=\"mt-auto lh-sm price has-special\">\n\t\t\t<div class=\"base-price\">\n                $49.99            <\/div>\n\t\t\t\t\t\t\t<div class=\"special-price\">\n                    $44.99                <\/div>\n                <div class=\"savings\">\n                    Save $5.00                <\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\n\t    <\/div>\n<\/li>\n\n<li class=\"product-card col-12 col-sm-6 col-lg-3 p-1\">\n    <div class=\"card h-100 py-2 px-3 rounded-0\">\n\t\n\t\t<div class=\"image p-2 my-0 my-sm-3 text-center\">\n\t\t\t<a href=\"https:\/\/gunmagwarehouse.com\/thril-gen-2-sm9-mpx-9mm-35-round-magazine.html\">\n\t\t\t\t\t\t<img\n\t\t\tdata-src=\"https:\/\/gunmagwarehouse.com\/media\/catalog\/product\/t\/h\/thril-gen-2-sm9-mpx-9mm-35-round-magazine-2_1_.png\"\n\t\t\talt=\"Thril Gen 2 SM9 MPX 9mm 35-Round Magazine DE\"\n\t\t\twidth=\"150\"\t\t\theight=\"150\"\t\t src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\n\t\t\n\t\t<a class=\"text-dark mb-2 mb-sm-4 lh-sm fw-bold\" href=\"https:\/\/gunmagwarehouse.com\/thril-gen-2-sm9-mpx-9mm-35-round-magazine.html\">Thril Gen 2 SM9 MPX 9mm 35-Round Magazine DE<\/a>\t\n\t\t\t\t\t<div class=\"mt-auto lh-sm price has-special\">\n\t\t\t<div class=\"base-price\">\n                $39.99            <\/div>\n\t\t\t\t\t\t\t<div class=\"special-price\">\n                    $35.99                <\/div>\n                <div class=\"savings\">\n                    Save $4.00                <\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\n\t    <\/div>\n<\/li>\n            <\/ul>\n\n                    <div class=\"d-flex justify-content-center\">\n                <div class=\"btn btn-dark\">\n                    <a class=\"text-white\" href=\"https:\/\/gunmagwarehouse.com\/magfinder\/sig-sauer-mpx\">\n                        All Sig MPX Magazines                    <\/a>\n                <\/div>\n            <\/div>\n        \n        <\/div>\n\t<\/div>\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>For the Sig MPX, you have two 35-round magazine options: Sig Sauer or Thril. Which should you choose? Jeremy digs into the details.<\/p>\n","protected":false},"author":71,"featured_media":372407,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[2332],"tags":[],"class_list":["post-369827","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-magazine-reviews"],"small_media_thumbnail":"https:\/\/gunmagwarehouse.com\/blog\/wp-content\/uploads\/2022\/10\/Sig-MPX-magazines-300x225.jpg","_links":{"self":[{"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/posts\/369827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/users\/71"}],"replies":[{"embeddable":true,"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/comments?post=369827"}],"version-history":[{"count":13,"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/posts\/369827\/revisions"}],"predecessor-version":[{"id":442259,"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/posts\/369827\/revisions\/442259"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/media\/372407"}],"wp:attachment":[{"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/media?parent=369827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/categories?post=369827"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gunmagwarehouse.com\/blog\/wp-json\/wp\/v2\/tags?post=369827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}