$2,275.00

HK MR 556 A4 Complete 11″ Upper Kit BRAND NEW

  • Phone Number: Click to view
  • Condition: New
  • Listing Type: Individual
  • City: West Jordan
  • State: Utah
  • Zip/Postal Code: 84088
  • Local County (e.g., Summit County): Salt Lake
  • Make/Brand: Heckler & Koch
  • Model: MR 556 A4
  • Caliber: .22
  • Terms: Must agree to terms
  • Listed: August 12, 2026 5:26 pm
  • Expires: 38 days, 12 hours

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Listing Type: Individual

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Description

I have a brand new HK MR 556 A4 11″ Upper kit. It comes with everything it did from the factory: the upper, HK bag, BCG, Buffer and Spring. It has never been mounted to a lower or used in anyway. I got it thinking I would build out a nice lower for it, but some things came up and that’s no longer an option. Not interested in trades.

  

Listing ID: 8216a7d036a54483
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