Product DescriptionThe Ballistic Adv Modern Series DRP Profile barrel is a compact 5.56x45mm NATO option for AR-15 builds, featuring a corrosion-resistant QPQ finish and a durable 4150 Chrome Moly Vanadium (CMV) steel construction. Designed with a pistol-length gas system and a threaded muzzle, it's built for reliable cycling and easy compatibility with common muzzle devices. A QPQ-coated M4 feed ramp extension helps support consistent feeding performance.Product Highlights Modern Series DRP Profile AR-15 barrel chambered in 5.56x45mm NATO for broad ammunition compatibility Machined from 4150 Chrome Moly Vanadium (CMV) steel for strength and long service life Black QPQ (nitride) corrosion-resistant finish for enhanced durability in harsh conditions QPQ-coated M4 feed ramp extension to promote smooth, consistent feeding Threaded muzzle and pistol-length gas system for compact AR-15 pistol/SBR-style configurationsSpecs Brand: Ballistic Adv Series/Model: Modern Series Caliber/Chamber: 5.56x45mm NATO Barrel Length: 8 in Profile: DRP Profile Material: 4150 Chrome Moly Vanadium (CMV) steel Finish: Black QPQ Gas System Length: Pistol Rifling Twist Rate: 1:7 Muzzle Threads: 1/2x28 Feed Ramps: M4 (QPQ coated extension) Compatibility: Fits AR-15 Weight: 18 oz UPC: 819747020017 Manufacturer Part Number: BABL556003MDisclaimer: 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.