The Heckler & Koch MR556 A4 is a premium 556NATO rifle with an 11-inch barrel, M-LOK handguard, and 30-round magazine capacity. Built for tactical shooters, sport enthusiasts, and home defense.
The HK MR556 A4 556NATO rifle delivers premium semi-automatic performance in a compact platform. This rifle features an 11-inch barrel engineered for accuracy and handling. Additionally, it combines professional-grade components with intuitive controls for shooters of all experience levels.
Furthermore, the MR556 A4 includes an M-LOK free float handguard system. This design allows customization with tactical accessories and optics. Moreover, the adjustable gas block enables reliable cycling across various ammunition types. As a result, shooters enjoy consistent performance in diverse conditions.
Premium Features & Engineering
The anodized black finish resists corrosion and withstands extended use. Furthermore, the HK USA enhanced grip provides superior control and ergonomics during extended firing sessions. Additionally, ambidextrous controls ensure both left and right-handed shooters operate the rifle comfortably. The 30-round magazine capacity supports tactical, sport, and recreational shooting demands effectively.
Who Should Choose the MR556 A4?
This rifle suits tactical shooters and competitive sport enthusiasts equally well. Moreover, home defense-minded individuals appreciate its compact size and firepower. Additionally, recreational shooters benefit from its precision engineering and reliability. Finally, experienced firearms users will value the MR556 A4’s intuitive operation and customization options.
Legendary Heckler & Koch Reliability
Heckler & Koch maintains worldwide reputation for exceptional reliability standards. The MR556 A4 delivers consistent accuracy across varied shooting conditions and ammunition types. Additionally, the gas block system cycles reliably with both 556 NATO and 223 Remington loads. Therefore, shooters depend on this rifle when performance matters most.
Ordering from Western Sport
Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.
Frequently Asked Questions
Q: What ammunition does the HK MR556 A4 accept?
A: The MR556 A4 fires both 556 NATO and 223 Remington ammunition. These cartridges are widely available and reliable for target, tactical, and recreational shooting applications.
Q: Can I add optics and tactical accessories to this rifle?
A: Yes, the M-LOK free float handguard supports mounting tactical rails and accessories. Additionally, the top receiver accepts standard Picatinny rail-mounted optics for your preferred aiming solution.
Q: What warranty does Heckler & Koch provide on the MR556 A4?
A: Heckler & Koch provides a limited lifetime warranty covering manufacturing defects. Western Sport offers personal guidance on warranty registration and claims processing.
Q: Is the HK MR556 A4 legal to own in Texas?
A: Yes, this rifle is legal in Texas and most states. However, it cannot ship to CA, CO, CT, DC, DE, HI, IL, MA, MD, NJ, NY, RI, VT, or WA. All federal and state firearms laws apply to your purchase.
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