Commercial Firearms

Heckler & Koch Semi-automatic Rifle

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Rifles

Heckler & Koch, MR556 A4, Semi Automatic, 5.56 NATO, 16.5" Barrel, Black Anodize

Heckler & KochSemi-AutomaticUPC 642230269408

The Heckler & Koch MR556 A4 is a top-tier semi-automatic rifle chambered in 5.56 NATO, featuring a 16.5" barrel with a 1/2"x28 thread pitch, finished with durable black anodize coating. Designed for reliability and precision, this rifle comes with a 30-round magazine, making it an excellent choice for tactical, sporting, and defense applications. With its advanced gas system and ergonomic design, the MR556 A4 delivers consistent accuracy and control, perfect for professionals and enthusiasts alike. Whether for competitive shooting or personal protection, this rifle offers a balanced combination of power, durability, and adaptability.

ManufacturerHeckler & Koch

TypeSemi-Automatic

UPC642230269408

Item #81000827

Technical Overview

CategoryRifles

ManufacturerHeckler & Koch

ModelSemi-Automatic

InventoryIn Stock

Item Number81000827

UPC642230269408

Specifications

Manufacturer: Heckler & Koch
Model: MR556 A4
Type: Semi-Automatic Rifle
Caliber: 5.56 NATO
Barrel Length: 16.5 inches
Barrel Thread Pattern: 1/2"x28
Finish: Black Anodize
Included Magazine: (1) 30-round magazine
Action: Gas-operated, rotating bolt
Sights: Integrated flip-up iron sights
Stock: Adjustable telescoping stock
Handguard: Free-floating accessory rail system
Overall Length: Approximately 33 inches
Weight: Approximately 7.9 lbs
Product Number: 81000827

FAQs

What type of ammunition does the MR556 A4 use?

The MR556 A4 is chambered for 5.56 NATO ammunition.

Does the rifle come with iron sights?

The MR556 A4 typically ships without iron sights but features a Picatinny rail for mounting optics or sights.

Is the barrel threaded?

Yes, it has a 1/2"x28 threaded barrel suitable for attaching muzzle devices.

How many rounds does the included magazine hold?

The included magazine holds 30 rounds.

Is this rifle legal for civilian ownership?

This depends on local laws; always check your jurisdiction's regulations before purchasing.

Can accessories from AR-15 platforms be used?

Yes, the MR556 A4 shares compatibility with many AR-15 style accessories.

What is the barrel length?

The barrel length is 16.5 inches.

Is the finish corrosion-resistant?

Yes, the black anodize finish provides strong corrosion resistance.

Heckler & Koch Semi-automatic Rifle

Heckler & Koch, MR556 A4, Semi Automatic, 5.56 NATO, 16.5" Barrel, Black Anodize

Technical Overview

Specifications

FAQs

Excels

Common Cases

Best Uses

Heckler & Koch Semi-automatic Rifle

Heckler & Koch, MR556 A4, Semi Automatic, 5.56 NATO, 16.5" Barrel, Black Anodize

Technical Overview

Specifications

FAQs

Excels

Common Cases

Best Uses

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Used Heckler & Koch MR556A4 5.56mm 16" barrel with factory soft case