{"product_id":"rock-river-arms-tactical-carbine-upper-in-450-bushmaster-with-16-inch-barrel","title":"Rock River Arms Tactical Carbine Upper in .450 Bushmaster with 16-inch Barrel","description":"Rock River Arms Tactical Carbine, Complete Upper Receiver, 450 Bushmaster, 16 Barrel, Mid-Length Gas System, RRA Operator Muzzle Brake, RRA 13 Free Float M-LOK Handguard, Anodized Finish, Black, Fits AR-15, 5 Rounds, 1 Magazine, Includes Bolt Carrier Group and Charging Handle Assembly 450B0592\n\u003cp\u003eThe Rock River Arms Tactical Carbine Upper in .450 Bushmaster offers precision and reliability for your firearm setup. Featuring a 16-inch chrome moly barrel with a 1\/24 twist rate, this upper ensures accurate shooting performance with the powerful .450 Bushmaster cartridge. It includes a lightweight, free-floating M-Lok compatible handguard measuring 13 inches, providing excellent accessory mounting options and enhanced handling. The RRA Operator Brake with a 5\/8-24 thread helps reduce recoil and muzzle rise, supporting faster follow-up shots. This complete upper assembly comes with a bolt carrier group, charging handle, and a 5-round magazine, making it ready for immediate installation and use. Built with durability in mind, the black finish withstands harsh conditions while maintaining a sleek appearance. Whether for hunting, target shooting, or tactical applications, this upper is designed to deliver dependable performance and ease of customization in a variety of shooting environments.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCaliber: .450 Bushmaster for powerful projectile performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBarrel Length: 16 inches with chrome moly construction for durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTwist Rate: 1\/24 for stable projectile stability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHandguard: 13-inch lightweight, M-Lok compatible free float rail for accessory mounting\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMuzzle Device: RRA Operator Brake (5\/8-24 thread) for recoil management\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eComplete Assembly: Includes bolt carrier group, charging handle, and 5-round magazine\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eColor: Black finish for corrosion resistance and sleek look\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eModel: Tactical Carbine designed for versatile shooting applications\u003c\/li\u003e\u003c\/ul\u003e","brand":"Rock River Arms","offers":[{"title":"Default Title","offer_id":46528277577925,"sku":"842834125548","price":728.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9484\/5637\/files\/6012885.jpg?v=1783909555","url":"https:\/\/irondesertarmory.com\/products\/rock-river-arms-tactical-carbine-upper-in-450-bushmaster-with-16-inch-barrel","provider":"Iron Desert Armory","version":"1.0","type":"link"}