ZRO Delta Modulus 9mm Duty Conversion Kit 4.58 Barrel Features The focal point of the kit is the 4.58 inch duty barrel finished in nitride for improved corrosion resistance and durability. Its length increases sight radius and potential ballistic consistency while maintaining overall manageable size. Precision machining ensures dependable feed and repeatable alignment with compatible magazines. Included in the conversion package is a duty length slide assembly measuring 7.5 inches a duty length dust cover that adds rigidity and accessory mounting real estate and a duty length magwell designed to aid reload efficiency. Together these components deliver a cohesive upgrade that enhances control balance and functionality on the Modulus platform. ZRO Delta Modulus 9mm Duty Conversion Kit 4.58 Barrel Specifications Manufacturer: ZRO Delta Model: Modulus Duty Conversion Kit Barrel Length: 4.58 inches Slide Assembly: Duty Length (7.5 inches) Dust Cover: Duty Length Magwell: Duty Length Magwell Caliber: 9mm Compatibility: ZRO Delta Modulus Platform Application: Modular Conversion Kit Finish: Black