The Heckler & Koch MR556A4 URK Upper Kit is designed for optimal performance and durability, featuring a matte black finish that resists corrosion and wear. This accessory upper is compatible with 5.56 NATO and .223 Remington calibers, making it suitable for a variety of tactical and sporting applications. Constructed with high-quality materials, the kit includes a reliable bolt carrier group and buffer system, ensuring smooth operation and consistent cycling during use. The integrated M-Lok handguard provides versatile attachment points for accessories, allowing customization to meet specific operational needs. This upper assembly is ideal for firearm enthusiasts seeking to upgrade or replace their existing upper with a proven, robust component from Heckler & Koch.
Features:
- Includes bolt carrier group and buffer for complete installation
- M-Lok handguard offers customizable accessory mounting options
- Matte black finish enhances durability and corrosion resistance
- Designed for 5.56 NATO and .223 Remington calibers
- Constructed by Heckler & Koch (HK USA) for quality assurance
