Heckler & Koch MR556 A4 Rifle 5.56x45mm 16.5″ Black 10rd
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Only 1 left in stock
Ships in 7 business days
⚠︎ Shipping & Purchase Restrictions
Which ones
Firearms, ammunition, and NFA items are subject to shipping and transfer restrictions based on product type, destination, and inventory source.
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Ammo: No sales to AK, CA, HI, IL, NY
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Must ship to FFL: DC, NJ
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SOT/NFA Items: No sales to CA, DE, HI, IL, NY, MD, WA
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Firearms & Parts: Additional restrictions apply, particularly in AK, CA, HI, NY, WA.
All orders are subject to state and local laws and shipping eligibility.
This item ships to a licensed dealer
Pick your FFL at checkout, or search dealers by ZIP first. You must be 21+ to take transfer of a handgun.
Product Information
Description
The Heckler & Koch MR556 A4 is a semi-automatic 5.56x45mm rifle with a 16.5-inch threaded barrel and one 10-round magazine. This H&K model 81000828 features a short-stroke gas piston system, adjustable gas regulator for suppressed or unsuppressed operation, ambidextrous controls, an adjustable stock, and a Picatinny optics rail. Its black finish is anodized.
California Proposition 65 warning: This product can expose you to chemicals known to the State of California to cause cancer or reproductive harm. See www.P65Warnings.ca.gov.
Full Specifications
| SKU | TS-642230269415 |
| UPC | 642230269415 |
| Manufacturer Product Number | 81000828 |
| Brand | H&K |
| Action | Semi-Auto |
| Barrel Length | 16.5" |
| CA Prop 65 | Yes |
| Caliber | 5.56x45mm |
| Firearm Capacity | 10 |
| Firearm Platform | AR Rifle |
| Gun Finish | Anodized |
| Gun Model | MR556 A4 |
| Magazines Included | 1 |
| Model Series | AR-15 |
| Optic Ready | Picatinny Rail |
| Stock Material | Synthetic |
| Threaded Barrel | Yes |
| Barrel Twist | 1:7 |
Shipping, Transfer & Returns
Shipping
- Insured to your FFL in 1–2 business days.
- Online only — no counter pickup at TS Firearm.
Transfer
- 21+ for handguns. Form 4473 and background check at the dealer.
- Dealer transfer fees are set by the dealer.
Returns
- Inspect at the counter before accepting transfer.
- Defects go to Canik’s warranty; we open the claim.
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