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HK- Heckler and Koch HK MR556 A4 223 Remington/5.56x45mm,…

SKU642230269439 CategoryFirearm
$3396.29
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Specs at a glance

HK- Heckler and Koch HK MR5… SPECS AT A GLANCE 45mm SIZE
Editorial diagram — measurements verified during testing.

About this product

The HK- Heckler and Koch HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd delivers 45mm performance for serious practitioners. Engineered for recreational enjoyment, this firearm combines reliability with proven performance. Ships to all 50 states. Available nationwide.

Product Overview

The HK- Heckler and Koch HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd delivers proven 45mm performance for quality-focused customers.

The latest update from HK-USA to the commercial variant of the legendary HK416, the MR556 A4 and MR762 A4 represent an enhanced example of no compromise HK performance. This isn’t just another Firearm – it’s a tool designed for those who demand reliability when it matters most.

Key Features

What sets this apart:

  • Chambered in 45mm – A proven cartridge offering the right balance of performance and controllability
  • 30 Capacity – Ample ammunition for training, competition, or defensive scenarios
  • Anodized Finish – Durable protection against wear and corrosion
  • Quality Construction – HK- Heckler and Koch builds to exacting standards
  • Ergonomic Design – Comfortable handling for extended use

Performance & Applications

Understanding where a product performs best helps you make an informed decision. The HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd proves itself across multiple applications:

Practical Purposes: For practical purposes, the HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd delivers consistent results that experienced users expect.

Regular Use: For regular use, the HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd performs reliably, meeting the demands of serious users.

Professional Applications: For professional applications, the HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd performs reliably, meeting the demands of serious users.

About HK- Heckler and Koch

HK- Heckler and Koch has established themselves as a leader in the industry through their commitment to uncompromising quality. When you choose a HK- Heckler and Koch product, you’re investing in decades of engineering expertise and real-world testing.

The HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd exemplifies what HK- Heckler and Koch does best – creating tools that perform when it matters most. Every component reflects their dedication to quality and user satisfaction.

Make Your Decision

The HK- Heckler and Koch HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd represents a solid choice for anyone seeking quality and reliability. With proven performance and thoughtful design, it’s ready to serve your needs. Review the specifications below, and if you have questions, don’t hesitate to reach out.

Technical Specifications

Manufacturer HK- Heckler and Koch
Caliber 45mm
Magazine Capacity 30
Bullet Type ap
Finish anodized
Thread Pitch threaded barrel
SKU / Model 642230269439

Frequently Asked Questions

Is this a quality product?

HK- Heckler and Koch has built their reputation on quality, and the HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd exemplifies that commitment.

What warranty is included?

HK- Heckler and Koch stands behind this product with their manufacturer warranty.

Who is this product for?

This is ideal for discerning buyers who prioritize quality and reliability.

What makes this product stand out?

The HK MR556 A4 223 Remington/5.56x45mm, 11″ Threaded Barrel, Black, M-Lok Handguard, 30rd combines quality construction with reliable performance, offering exceptional value.

Key attributes

Caliber45mm
Capacity30
Finishanodized
Sources & methodology. Editorial review and rating by The PRK Arms Team based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$3396.29
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