HK Heckler & Koch MR556 556 Nato 16" Barrel Optics Ready 10 Round Capacity 81000580
UPC: 642230262560 MPN: 81000580 SKU: 72278048

HK MR556 223 Rem | 5.56 Nato Rifle (10-Round)

Rifles Semi Auto HK MR556 SKU: 72278048 In StockOnline Only

Quick Specs

Caliber 223 Rem | 5.56 NATO,5.56x45mm NATO,223 Rem/5.56 Nato
Capacity 10+1

Insight Snapshot

Gunprime lists this offer at $2,999.00, 20% under MSRP.

  • HK MR556 anchors the Rifles segment in the firearms catalog, giving shoppers a clear baseline before purchase.
  • Chambered in 223 Rem | 5.56 NATO, it keeps ballistics predictable across practice and defensive loads without forcing you to rework your kit.
  • Factory materials note a semi-auto action, which influences recoil timing and maintenance cadence.
  • Standard capacity lands at 10 + 1, so plan your range loadout around how often you expect to top off.

Shopping Tips

  • The featured offer reflects a 20% savings versus MSRP; use that benchmark when negotiating.
  • Line up your receiving FFL early and clarify their transfer fees so you are not surprised at pickup.

Ownership Checklist

  • Confirm the receiving FFL is ready for the transfer and understands the model you are purchasing.
  • Review Chagrin Falls, Ohio requirements on storage, transport, and waiting periods before the firearm arrives.
  • Source 223 Rem | 5.56 NATO practice ammunition early; popular loads tighten in supply when prices drop.

Common Questions

What specs should I know before buying HK MR556 223 Rem | 5.56 Nato Rifle (10-Round)?

Key callouts include caliber: 223 Rem | 5.56 NATO, action: Semi-Auto, capacity: 10 + 1. Scroll up for the full specification table before you commit.

HK MR556 headlines the specification sheet for this platform. Factory literature categorizes it as a modern sporting rifle, which frames expectations for handling and use. Factory chambered in 223 Rem | 5.56 NATO, built around a semi-auto action with a 10 + 1 round capacity to keep performance predictable from shot to shot. Dimensional notes call out a barrel length of 16.50" in and overall length measuring 33.90"- 37.68" in, helping you plan cases and storage. Unloaded weight settles near 8.60 lbs, which influences recoil management and carry options. Furniture is trimmed in synthetic with a black finish, giving the rifle its classic profile. Metalwork wears a colored treatment, pairing durability with period-correct styling. Stock appointments include smooth furniture without checkering and a fitted recoil pad. Overall dimensions ship at 4.70 X 13.45 X 43.95, so plan case and safe clearance accordingly. Magazine system uses a detachable design, making reloads faster between strings. Without a hinged floorplate you will cycle rounds out manually when clearing the rifle.