{"product_id":"rra-cmp-coyote-car-a4-upr-300blk-16","title":"Rock River Arms CMP Coyote CAR A4 Upper .300 Blackout 16\" – AR-15 Platform","description":"\u003cp\u003eThe Rock River Arms CMP Coyote CAR A4 Upper in .300 Blackout features a 16-inch barrel configured for versatile performance with subsonic and supersonic loads. Chambered in .300 BLK, this complete upper receiver assembly is designed for standard AR-15 lower receivers and delivers reliable cycling across a wide range of ammunition weights. The A4 flat-top configuration provides a full-length Picatinny rail for optics mounting.\u003c\/p\u003e\u003cp\u003eThis upper is built with a forged aluminum receiver and includes a mid-length gas system for smooth operation with .300 Blackout's pressure characteristics. The Coyote Tan Cerakote finish provides corrosion resistance for field use. Arrives as a complete upper receiver group ready to install on your AR-15 lower—no additional assembly required. Note: .300 Blackout and 5.56 NATO magazines are interchangeable, but always verify barrel markings before loading to prevent dangerous chambering errors.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .300 Blackout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Complete Upper Receiver Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Lower:\u003c\/strong\u003e AR-15 \/ MILSPEC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Forged Aluminum Receiver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Coyote Tan Cerakote\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Complete upper receiver group with bolt carrier group and charging handle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in ready for AR-15 lowers, no gunsmithing required\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rock River Arms","offers":[{"title":"Default Title","offer_id":47939780772095,"sku":"RRABLK0592","price":819.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2950213.jpg?v=1766546553","url":"https:\/\/doublestackstore.com\/products\/rra-cmp-coyote-car-a4-upr-300blk-16","provider":"Double Stack Store","version":"1.0","type":"link"}