Product DescriptionThe Ballistic Advantage Premium Series 18" 6mm ARC barrel is built for precision-focused AR-15 rifles, combining durable 416 stainless steel construction with a black QPQ finish for enhanced corrosion and wear resistance. Designed in an SPR profile and featuring a Nickel Boron Coated Extended M4 Feed Ramp Extension, this barrel is engineered to promote smooth, reliable feeding and consistent performance for demanding range and field use.Product Highlights Premium Series 18" 6mm ARC barrel designed to fit AR-15 platforms 416 stainless steel barrel with black QPQ finish for excellent durability and corrosion resistance Nickel Boron Coated Extended M4 feed ramp extension helps improve feeding reliability SPR profile and rifle-length configuration aimed at accuracy-oriented builds Threaded muzzle for compatibility with common muzzle devices and suppressor mountsSpecs Brand: Ballistic Advantage Manufacturer Part Number: BABL6MM002PQ UPC: 819747028648 Caliber: 6mm ARC Barrel Length: 18 inches Material: 416 Stainless Steel Finish: Black QPQ Platform Fit: AR-15 Profile: SPR Twist Rate: 1:7 Muzzle: Threaded Feed Ramp Extension: Nickel Boron Coated Extended M4Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the products manufacturer.