Product Description Cobalt Kinetics CK-Pro Upper Receiver Group AR-15 .223 Wylde 13.7\" Barrel Black Cerakote Finish Cobalt Kinetics CK-Pro Upper Receiver Group AR-15 .223 Wylde 13.7\" Barrel Black Cerakote Finish at Classic Firearms Browse all Classic Firearms deals $775.99 In Stock at Classic Firearms Buy Now at Classic Firearms Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Cobalt Kinetics MPN CKPROURG13SBLK Accessories Cobalt Kinetics