

HK 81001201 MR556 A4 5.56x45mm 30+1 11" Black Threaded Barrel, M-LOK Handguard, Patriot Brown Picatinny Rail Receiver, Black Synthetic 6 Position Stock, Black Polymer Grip, Ambidextrous
Shop Heckler & Koch ProductsThis item is currently out of stock. Enter your email below and we'll notify you when it's available!
We'll only use your email to notify you about this product.
Ships to your local FFL
Firearms ship to a licensed dealer (FFL) near you for pickup, not to your home. Don't have one in mind? We'll help you pick a local FFL during checkout. Find an FFL near you.
HK MR556 A4 5.56x45mm Semi-Auto Rifle - UPC: 642230271050
The HK MR556 A4 is a high-performance semi-automatic rifle featuring a short-stroke gas piston system that minimizes carbon fouling, enhancing reliability and reducing maintenance. Its fully ambidextrous controls and adjustable gas regulator make it versatile for both suppressed and unsuppressed use. The rifle's lightweight design and slim profile ensure ease of operation and handling.
Specs:
Technical Specifications
| Caliber | 5.56x45mm |
|---|---|
| Capacity | 30 |
| Barrel Length | 11.00" |
| Action Type | Semi-Auto |
| Weight | 11 lbs |
| Overall Length | 26.50" |
| Frame Material | Synthetic |
| Safety | Ambidextrous Safety Lever |
| Grips | Black Polymer Grip |
| Manufacturer | Heckler & Koch |
| Model | 81001201 |
| SKU | S1182803 |
| UPC | 642230271050 |
| Availability | Out of Stock |
Customer Reviews
No reviews yet. Be the first to review this product!
Shipping & Returns
Ships to your local FFL
This firearm ships to a licensed dealer (FFL) near you for pickup, not to your home. You'll choose your FFL during checkout, and if you don't have one in mind, we'll help you find a nearby dealer. You complete the background check and pick it up there.
Shipping Information
- Firearms ship via FedEx or UPS with signature required
- Tracking information provided for all orders
- Shipping costs calculated at checkout based on weight and destination
Return Policy
- Firearms must be returned unfired and in original packaging within 3 days of FFL transfer
- 15% restocking fee applies to all firearm returns
- Contact us for return authorization before shipping items back
- Original shipping costs are non-refundable
Questions?
Contact us at 256-962-0301 or submit a question for assistance with shipping or returns.
Get Your Exclusive Price
Enter your email and we'll instantly send you our best price for this item.
Purchase now at the listed MAP price
What is MAP Pricing?
MAP stands for Minimum Advertised Price. It's a policy set by manufacturers that limits how low retailers can advertise their prices.
The good news? We can often sell below MAP - we just can't show that price publicly. When you request a price by email or add to cart, you'll see our actual (often lower) price.
This isn't a trick - it's how we stay compliant while still offering you the best deals possible.







