{"product_id":"millsport-upper-5-56mm-16-ml","title":"American Tactical Inc Millsport Upper 5.56mm 16\" M-LOK – Complete AR-15 Upper Receiver Assembly","description":"\u003cp\u003eThe American Tactical Inc Millsport upper receiver assembly is a complete drop-in 5.56mm upper for AR-15 platform rifles. This factory-assembled upper features a 16-inch barrel with a carbine-length gas system and an M-LOK compatible handguard for accessory mounting. The assembly arrives ready to mate with any mil-spec AR-15 lower receiver.\u003c\/p\u003e\u003cp\u003eBuilt with a forged upper receiver, the Millsport includes a bolt carrier group and charging handle. The M-LOK handguard provides multiple attachment points for lights, grips, and other accessories while maintaining a slim profile. Compatible with standard AR-15\/M16 magazines and lower receivers chambered in 5.56mm NATO or .223 Remington.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Complete AR-15 upper receiver assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56mm NATO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas System:\u003c\/strong\u003e Carbine-length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandguard:\u003c\/strong\u003e M-LOK compatible free-float\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bolt carrier group, charging handle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Mil-spec AR-15 lower receivers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"American Tactical Inc","offers":[{"title":"Default Title","offer_id":47950702477567,"sku":"ATI15MS556ML15","price":285.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/ati15ms556ml15b6de_a8b4ad80-0624-4e3e-aba6-d7a8b751a798.jpg?v=1766721170","url":"https:\/\/doublestackstore.com\/products\/millsport-upper-5-56mm-16-ml","provider":"Double Stack Store","version":"1.0","type":"link"}