Product Description The Ballistic Advantage Premium Series (Premium Black Series) AR-15 barrel is built for 6mm ARC performance in a versatile 16-inch SPR profile. Designed around a mid-length gas system and supplied with a low-profile gas block, this barrel features a corrosion-resistant black QPQ finish and a nickel boron-coated extended M4 feed ramp extension to promote smooth, reliable feeding. With a threaded muzzle, it&';s ready for compatible muzzle devices and suppressor mounts on AR-15 platforms chambered in 6mm ARC. Product Highlights 16" 6mm ARC AR-15 barrel with SPR profile for balanced handling and precision-focused use Mid-length gas system with included low-profile gas block for reliable cycling Black QPQ finish for enhanced corrosion resistance and durability Nickel boron-coated extended M4 feed ramp extension for consistent, smooth feeding Threaded 5/8x24 muzzle for broad muzzle device compatibility Specs Brand: Ballistic Advantage Manufacturer Part Number: BABL6MM001PQ UPC: 819747028624 Platform Fit: AR-15 Caliber: 6mm ARC Barrel Length: 16" Barrel Profile: SPR Gas System Length: Mid-length Gas Block: Low profile (included) Gas Block Journal: .750 Twist Rate: 1:7 Muzzle Threads: 5/8x24 Finish: Black QPQ Material: 416/416R stainless steel (see note) Feed Ramp Extension: Nickel boron-coated extended M4 feed ramp extension Weight: 39.3 oz Disclaimer: 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 product&';s manufacturer.