{"id":7596,"date":"2026-07-26T22:55:07","date_gmt":"2026-07-26T22:55:07","guid":{"rendered":"https:\/\/landmarkfirearms.com\/ca\/?post_type=product&p=7596"},"modified":"2026-07-26T22:55:13","modified_gmt":"2026-07-26T22:55:13","slug":"smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight","status":"publish","type":"product","link":"https:\/\/landmarkfirearms.com\/ca\/product\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\/","title":{"rendered":"Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight"},"content":{"rendered":"

Buy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online<\/h1>\n
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Buy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online. Smith & Wesson\u2019s unique Scandium Alloy high strength frames allow for the lightest revolvers capable of firing .357 S&W Magnum\u00ae, or .44 Magnum. The Smith & Wesson J-Frame has become the most popular small frame personal defense revolver on the market. With decades of reliable performance to its credit, the J-frame line offers models capable of firing .22 LR, .22 Magnum\u00ae, .38 S&W Special and the more powerful .357 Magnum\u00ae loads. Smith & Wesson offers these revolvers from their production, M&P, Pro Series, and Classics lines in three diverse hammer designs; internal, exposed and shrouded.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Firearm Specifications<\/strong><\/h2>\n<\/div>\n
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  • SKU:163072<\/li>\n
  • Model: M&P340<\/li>\n
  • Caliber: .357 Magnum\u00ae .38 S&W Special +P<\/li>\n
  • Capacity: 5 Rounds<\/li>\n
  • Barrel Length: 1.875 in. \/ 4.7 cm<\/li>\n
  • Front Sight: XS Sights\u00ae 24\/7 Tritium Night<\/li>\n
  • Rear Sight: Integral U-Notch<\/li>\n
  • Grip: Synthetic<\/li>\n
  • Overall Length: 6.31 in. \/ 16.0 cm<\/li>\n
  • Action: Double Action Only<\/li>\n
  • Weight Empty: 13.3 oz \/ 377.8 g<\/li>\n
  • Material: Scandium Alloy Frame<\/li>\n
  • Stainless Steel Cylinder<\/li>\n
  • Finish: Matte Black<\/li>\n
  • Frame Size: Small – Internal Hammer<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
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    What\u2019s in the Box<\/h3>\n
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    • Smith & Wesson M&P 340 357MAG J-Frame Revolver<\/li>\n
    • Gun Lock<\/li>\n
    • (2) Internal Lock Keys<\/li>\n
    • Spent Casing<\/li>\n
    • Owner\u2019s Manual<\/li>\n<\/ul>\n<\/div>\n<\/div>\n","protected":false},"featured_media":7626,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[164,179,180],"product_tag":[],"class_list":["post-7596","product","type-product","status-publish","product_cat-firearms","product_cat-handguns-for-sale","product_cat-pistols-for-sale","first","instock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nBuy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online | Canada<\/title>\n<meta name=\"description\" content=\"Buy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online. Smith & Wesson\u2019s unique Scandium Alloy high strength frames allow for the lightest revolvers capable of firing .357 S&W Magnum\u00ae, or .44 Magnum. The Smith & Wesson J-Frame has become the most popular small frame personal defense revolver on the market.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/landmarkfirearms.com\/ca\/product\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Buy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online | Canada\" \/>\n<meta property=\"og:description\" content=\"Buy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online. Smith & Wesson\u2019s unique Scandium Alloy high strength frames allow for the lightest revolvers capable of firing .357 S&W Magnum\u00ae, or .44 Magnum. The Smith & Wesson J-Frame has become the most popular small frame personal defense revolver on the market.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/landmarkfirearms.com\/ca\/product\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\/\" \/>\n<meta property=\"og:site_name\" content=\"Canada\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-26T22:55:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/landmarkfirearms.com\/ca\/wp-content\/uploads\/sites\/2\/2026\/07\/Smith-Wesson-MP340-357-Magnum-J-Frame-Revolver-with-Night-Sight.png\" \/>\n\t<meta property=\"og:image:width\" content=\"679\" \/>\n\t<meta property=\"og:image:height\" content=\"437\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\\\/\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\\\/\",\"name\":\"Buy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online | Canada\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Smith-Wesson-MP340-357-Magnum-J-Frame-Revolver-with-Night-Sight.png\",\"datePublished\":\"2026-07-26T22:55:07+00:00\",\"dateModified\":\"2026-07-26T22:55:13+00:00\",\"description\":\"Buy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online. Smith & Wesson\u2019s unique Scandium Alloy high strength frames allow for the lightest revolvers capable of firing .357 S&W Magnum\u00ae, or .44 Magnum. The Smith & Wesson J-Frame has become the most popular small frame personal defense revolver on the market.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\\\/#primaryimage\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Smith-Wesson-MP340-357-Magnum-J-Frame-Revolver-with-Night-Sight.png\",\"contentUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/Smith-Wesson-MP340-357-Magnum-J-Frame-Revolver-with-Night-Sight.png\",\"width\":679,\"height\":437},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/product\\\/smith-wesson-mp340-357-magnum-j-frame-revolver-with-night-sight\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#website\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/\",\"name\":\"Canada\",\"description\":\"Premium Guns, Ammo & Tactical Gear\",\"publisher\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#organization\",\"name\":\"Canada\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/logo-land.png\",\"contentUrl\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/07\\\/logo-land.png\",\"width\":927,\"height\":221,\"caption\":\"Canada\"},\"image\":{\"@id\":\"https:\\\/\\\/landmarkfirearms.com\\\/ca\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Buy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online | Canada","description":"Buy Smith & Wesson M&P340 357 Magnum J-Frame Revolver with Night Sight Online. 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