HK MR556A1 Tactical 5.56 NATO Semi-Auto Rifle - 16.5" Black
The HK MR556A1 Tactical 5.56 NATO Semi-Auto Rifle - 16.5" Black is a 5.56 NATO semi-automatic rifles from Heckler Koch. It is available from 1 vendor at $3299.99.
Product Information
Name: HK MR556A1 Tactical 5.56 NATO Semi-Auto Rifle - 16.5" Black
Brand: Heckler Koch
Category: Semi-Automatic Rifles
Caliber: 5.56 NATO
Barrel Length: 16.5"
Capacity: 10 rounds
UPC: 642230262560
SKU: UCBJ1QjNw
Description
The Heckler & Koch MR556A1 is a semi-automatic rifle chambered in 5.56x45mm NATO with a 16.5-inch barrel, optic-ready sights, and an adjustable stock that runs 33.90 to 37.68 inches overall. It weighs 8.60 lbs without a magazine and holds 10+1 rounds. The safety is ambidextrous.
Key Specifications
- Model: MR556A1
- Caliber: 5.56x45mm NATO
- Action: Semi-Automatic
- Barrel Length: 16.5 inches
- Overall Length: 33.90 - 37.68 inches (adjustable)
- Capacity: 10+1 rounds
- Weight: 8.60 lbs (without magazine)
- Finish: Black
- Safety Type: Ambidextrous
- Sights: Optic Ready
Detailed Features
The adjustable stock fits a range of shooter sizes without swapping parts. Ambidextrous safety levers make the rifle equally usable left- or right-handed. The optic-ready upper accepts most standard mounting systems. HK's piston-driven operating system, drawn from the HK416, runs cleaner and cooler than direct-impingement designs.
Usage Scenarios
The MR556A1 is suited to competitive 3-gun or tactical shooting events where 5.56 NATO is the expected chambering. At 8.60 lbs it's on the heavier side for an AR-pattern rifle, so it rewards a supported position. Home defense use is practical given the adjustable stock and ambidextrous controls. Recreational range use is straightforward with any 5.56 or .223 ammunition.
Complete Specifications
| Caliber | 5.56 NATO |
| Model | MR556 |
| Capacity | 10 rounds |
| Magazines included | 1 |
| Barrel length | 16.5" |
| Overall length | 37.68" |
| Weight | 137.6 oz |
| Action | Semi Auto |
| Finish | Black |
| Color | Black |
| Stock material | Collapsible / Folding Stock |
| Sights | Optic ready |
| Safety | Ambidextrous |
Frequently Asked Questions
What caliber is the HK MR556A1?
The HK MR556A1 is chambered in 5.56x45mm NATO.
What is the barrel length of the HK MR556A1?
It has a 16.5-inch barrel.
How many rounds does the HK MR556A1 hold?
It has a 10+1 capacity.
Who makes the MR556A1?
It is made by Heckler & Koch.
What type of firearm is the HK MR556A1?
It is a semi-automatic rifle with an adjustable stock and ambidextrous safety.
Is the HK MR556A1 optic-ready?
Yes, it comes with optic-ready sights that accept most standard mounting systems.
Where can I buy the HK MR556A1?
Compare current vendor offers on this page.
Customers Say
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
The HK MR556A1 attracts shooters who want a piston-driven AR-pattern rifle and are willing to pay for HK's build quality. The most consistent feedback covers construction and reliability: owners report minimal malfunctions across varied conditions and ammunition types, which builds confidence in those who carry it for defensive or duty purposes.
Accuracy gets consistent praise. The adjustable ergonomics and ambidextrous controls work well for a broad range of users, and the optic-ready platform makes customization straightforward.
Weight is the main complaint. At 8.60 lbs unloaded it runs heavier than many competing AR-style rifles, which affects handling during extended or fast-moving shooting. The price is also a regular topic; most owners consider it justified given the quality, but buyers comparing it to mid-tier ARs will notice the gap. Comparisons to other rifles in the AR category come up frequently, with personal preference and intended use usually determining the verdict.
Where to Buy - 1 Offers Available
Price Range: $3299.99 - $3299.99
| Vendor | Price | Condition | Link |
|---|---|---|---|
| Guns Com | $3299.99 | New | Buy Now |
