The Heckler & Koch (HK USA) MR556A4 URK Upper Kit is designed to provide a reliable and high-quality upgrade for your AR-style rifle chambered in 5.56 NATO or .223 Remington. This upper assembly features a durable matte black finish that resists corrosion and wear, ensuring long-lasting performance in various conditions. The kit includes a bolt and buffer, simplifying installation and ensuring compatibility with your existing firearm components. Its robust construction and precise manufacturing make it an excellent choice for both professional and recreational shooters seeking consistent accuracy and durability.

The MR556A4 URK upper is equipped with an M-Lok handguard, offering versatile attachment points for accessories such as lights, grips, and lasers. This modular design allows customization to suit individual preferences and operational needs. The upper does not include an adjustable objective or illuminated reticle, making it suitable for users preferring a straightforward, reliable platform without additional optical features. Its streamlined design and quality craftsmanship make it ideal for assembling a tailored firearm or upgrading an existing rifle to enhance performance.

Built by Heckler & Koch, a renowned manufacturer in the firearms industry, this upper kit combines precision engineering with functional design. Whether you're building a new rifle or upgrading an existing one, the MR556A4 URK provides a solid foundation that ensures compatibility and performance. With a focus on quality and reliability, this upper assembly is a strategic addition for enthusiasts and professionals looking for a dependable upgrade in their firearm arsenal.

Features:

• Includes bolt and buffer for seamless installation

• M-Lok handguard for versatile accessory attachment

• Matte black finish for durability and corrosion resistance

• Designed for 5.56 NATO and .223 Remington calibers

• Constructed by Heckler & Koch (HK USA) for reliable performance