{"product_id":"magazine-extension-for-smith-wesson-m-p","title":"Magazine Extension for Smith \u0026 Wesson M\u0026P","description":"\u003cp\u003eThe Henning Group Magazine Extension Kit for  Smith \u0026amp; Wesson M\u0026amp;P 9mm increases magazine capacity from 17 to 23 rounds!  The design of our extension is a true extension of the internal shape of the factory magazine tube. Combined with a stainless steel, 13-coil magazine spring it is a proven and reliable solution. Our Smith \u0026amp; Wesson M\u0026amp;P 9mm magazine extension is CNC machined from 6061-T6 billet aluminum. This extension fits the USPSA 141.25mm gauge, and is legal for Carry optics, Limited Optics, Limited \u0026amp; Open divisions in USPSA. \u003c\/p\u003e\n\n\n\n\u003cp\u003eOur latest design includes numbering dots, serrations for light side grab and a reinforced wall thickness. \u003c\/p\u003e\n\n\n\n\u003cp\u003eWe have two options for springs:\u003cbr\u003e\nA. Henning Group spring (using factory follower). Installed on a 17 round mag, our spring ensures proper function.\u003c\/p\u003e\n\n\n\n\u003cp\u003eB. MBX Follower and Spring increases capacity from 17 to 24 + 1. No Lock Back! Only for 17 round mags.\u003c\/p\u003e\n\n\n\n\u003cp\u003eWorks with all magwells we have tried, including the following:\u003c\/p\u003e\n\n\n\u003cp\u003eFloyds Custom Shop\u003cbr\u003e\nEd Brown\u003cbr\u003e\nSpringer Precision\u003cbr\u003e\nS\u0026amp;W Factory Magwell. *Magwell retaining pins on the Competitor HD may require modification for the magazine to drop free\u003c\/p\u003e\n\n\u003cp\u003eMBX Aftermarket Follower Kits do not NOT LOCK slide back on empty.\u003c\/p\u003e","brand":"Henning","offers":[{"title":"BLACK \/ No","offer_id":49616398549251,"sku":"H140-MS-2","price":44.95,"currency_code":"USD","in_stock":true},{"title":"BLACK \/ Yes - use factory follower - 17 to 23 + 1","offer_id":49617596743939,"sku":null,"price":49.95,"currency_code":"USD","in_stock":true},{"title":"BLACK \/ MBX Extreme 17 to 24 +1","offer_id":49617596776707,"sku":null,"price":66.9,"currency_code":"USD","in_stock":true},{"title":"SILVER \/ No","offer_id":49616398713091,"sku":"H140-MS-7","price":44.95,"currency_code":"USD","in_stock":true},{"title":"SILVER \/ Yes - use factory follower - 17 to 23 + 1","offer_id":49617596809475,"sku":null,"price":49.95,"currency_code":"USD","in_stock":true},{"title":"SILVER \/ MBX Extreme 17 to 24 +1","offer_id":49617596842243,"sku":null,"price":66.9,"currency_code":"USD","in_stock":true},{"title":"RED \/ No","offer_id":49616398876931,"sku":"H140-MS-12","price":44.95,"currency_code":"USD","in_stock":true},{"title":"RED \/ Yes - use factory follower - 17 to 23 + 1","offer_id":49617596875011,"sku":null,"price":49.95,"currency_code":"USD","in_stock":true},{"title":"RED \/ MBX Extreme 17 to 24 +1","offer_id":49617596907779,"sku":null,"price":66.9,"currency_code":"USD","in_stock":true},{"title":"BLUE \/ No","offer_id":49616399040771,"sku":"H140-MS-17","price":44.95,"currency_code":"USD","in_stock":true},{"title":"BLUE \/ Yes - use factory follower - 17 to 23 + 1","offer_id":49617596940547,"sku":null,"price":49.95,"currency_code":"USD","in_stock":true},{"title":"BLUE \/ MBX Extreme 17 to 24 +1","offer_id":49617596973315,"sku":null,"price":66.9,"currency_code":"USD","in_stock":true},{"title":"ORANGE \/ No","offer_id":49616399204611,"sku":"H140-MS-22","price":44.95,"currency_code":"USD","in_stock":true},{"title":"ORANGE \/ Yes - use factory follower - 17 to 23 + 1","offer_id":49617597006083,"sku":null,"price":49.95,"currency_code":"USD","in_stock":true},{"title":"ORANGE \/ MBX Extreme 17 to 24 +1","offer_id":49617597038851,"sku":null,"price":66.9,"currency_code":"USD","in_stock":true},{"title":"PURPLE \/ No","offer_id":49616399368451,"sku":"H140-MS-27","price":44.95,"currency_code":"USD","in_stock":true},{"title":"PURPLE \/ Yes - use factory follower - 17 to 23 + 1","offer_id":49617597071619,"sku":null,"price":49.95,"currency_code":"USD","in_stock":true},{"title":"PURPLE \/ MBX Extreme 17 to 24 +1","offer_id":49617597104387,"sku":null,"price":66.9,"currency_code":"USD","in_stock":true},{"title":"GREEN \/ No","offer_id":49616399532291,"sku":"H140-MS-32","price":44.95,"currency_code":"USD","in_stock":true},{"title":"GREEN \/ Yes - use factory follower - 17 to 23 + 1","offer_id":49617597137155,"sku":null,"price":49.95,"currency_code":"USD","in_stock":true},{"title":"GREEN \/ MBX Extreme 17 to 24 +1","offer_id":49617597169923,"sku":null,"price":66.9,"currency_code":"USD","in_stock":true},{"title":"GRAY \/ No","offer_id":49616399696131,"sku":"H140-MS-37","price":44.95,"currency_code":"USD","in_stock":true},{"title":"GRAY \/ Yes - use factory follower - 17 to 23 + 1","offer_id":49617597202691,"sku":null,"price":49.95,"currency_code":"USD","in_stock":true},{"title":"GRAY \/ MBX Extreme 17 to 24 +1","offer_id":49617597235459,"sku":null,"price":66.9,"currency_code":"USD","in_stock":true},{"title":"fde \/ No","offer_id":49616399859971,"sku":"H140-MS-42","price":44.95,"currency_code":"USD","in_stock":true},{"title":"fde \/ Yes - use factory follower - 17 to 23 + 1","offer_id":49617597268227,"sku":null,"price":49.95,"currency_code":"USD","in_stock":true},{"title":"fde \/ MBX Extreme 17 to 24 +1","offer_id":49617597300995,"sku":null,"price":66.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/6899\/2259\/files\/MagazineExtensionforSmith_WessonM_P_3.jpg?v=1789338364","url":"https:\/\/calledshotsco.com\/products\/magazine-extension-for-smith-wesson-m-p","provider":"Called shots Co.","version":"1.0","type":"link"}