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Commercial Firearms

Heckler & Koch Short Barreled Rifles Suppressors / Nfa

HECKLER & KOCH • Suppressors / NFA • Live store inventory

Heckler & Koch, MR556 A4, Semi, SBR, 5.56 NATO, 11" Barrel, 1/2X28 Thread Pitch,

Suppressors / Nfa

Heckler & Koch, MR556 A4, Semi, SBR, 5.56 NATO, 11" Barrel, 1/2X28 Thread Pitch,

Heckler & KochShort Barreled RiflesUPC 642230274112

The Heckler & Koch MR556 A4 Semi-Automatic Short Barrel Rifle (SBR) is a high-performance tactical firearm chambered in 5.56 NATO. Featuring an 11" barrel with a 1/2X28 thread pitch, this anodized black rifle is equipped with an M-LOK handguard for modular accessory mounting and an adjustable gas block for reliable cycling in various conditions. Ambidextrous controls and a 30-round magazine enhance usability and firepower. Engineered for versatility, the MR556 A4 excels in durability, precision, and quick target acquisition—making it an essential choice for enthusiasts and professionals alike.

ManufacturerHeckler & Koch
TypeShort Barreled Rifles
UPC642230274112
Item #81001048
$4,299.95
Out of Stock
Call to Reserve · (724) 935-7410 Back to listings

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Technical Overview

CategorySuppressors / Nfa
ManufacturerHeckler & Koch
ModelShort Barreled Rifles
InventoryOut of Stock
Item Number81001048
UPC642230274112

Specifications

  • Model: Heckler & Koch MR556 A4
  • Type: Semi-automatic Short Barrel Rifle (SBR)
  • Caliber: 5.56 NATO
  • Barrel Length: 11 inches
  • Thread Pitch: 1/2X28
  • Finish: Anodized Black
  • Handguard: M-LOK
  • Gas System: Adjustable Gas Block
  • Ambidextrous Controls
  • Magazine Capacity: 30 rounds

FAQs

What caliber does the MR556 A4 chamber?

The rifle chambers 5.56 NATO ammunition.

Is the barrel threaded for muzzle devices?

Yes, the 11" barrel has a 1/2X28 thread pitch compatible with standard attachments.

Does this model include ambidextrous controls?

Yes, it features ambidextrous safety and magazine release controls.

What kind of handguard does it use?

An M-LOK handguard allows modular attachment of accessories.

Can the gas system be adjusted?

Yes, it comes with an adjustable gas block for tuning reliability.

What is the magazine capacity?

The rifle is typically equipped with a 30-round magazine.

Is this firearm suitable for beginner shooters?

It is better suited for experienced users due to its tactical features and shorter barrel.

What finishes are available on the MR556 A4?

This model features a durable anodized black finish.

Potential Matches

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