Heckler & Koch MR223A3 11" Semi-Auto Pistol

Heckler & Koch
(3 reviews)
Current Stock:

Heckler & Koch MR223A3 11" Semi-Auto Pistol


The Heckler & Koch MR223A3 is the civilian semi-auto equivalent to the legendary HK416A5. Entirely made of German parts unlike the US made and assembled MR556, the MR223A3 is the real deal!

The MR223A3 stands out due to its excellent ergonomics and reliability, the gas system was developed for military use and has been well proven over the years. Its short stroke gas system reduces fouling to a minimum. Full ambidextrous controls


  • Hard chrome plated, free floating barrel - high accuracy
  • excellent results in all tests under adverse climate conditions
  • Length adjustable six position receiver extension for installation of brace or stock (ALL NFA rules apply)
  • The technology of the G36 guarantees a high level accuracy, functioning and handling
  • Slim line handguard with HKey mounting slots


  • Caliber: .223 Rem.
  • Operating principle: Gas-operated
  • Magazine compatibility: AR15 pattern magazines
  • Length min./max.: approx. 711/807 mm
  • Width: approx. 74.0 mm
  • Height: approx. 191.0 mm
  • Barrel length: approx. 279 mm
  • Sight radius: approx. 371.0 mm
  • Weight: 3.51 kg


  • 5

    Posted by Clearman on 23rd Oct 2021

    Thank you for importing all German HK’s. I am an avid collector and this is a great addition to my collection.

  • 5
    Only at AU!!

    Posted by D Han on 22nd Oct 2021

    AU has pieces that are hard to find. Price is always competitive. German factory made. My FFL was surprised to see this one in US. Thank you for your hard work to get these!!!!

  • 5
    MR223A3 11"

    Posted by Ralph on 1st Oct 2021

    A.U. is the best of the best. I have purchased quite a few contemporary hard to find scarce items that nobody else has available. You name it both Colt and Hk scarce products. Don't waste your time looking around elsewhere. If anyone has it - it will be A.U. Thanks again you guys are awesome. The MR223 itself is excellent. The quality of the parts and attention to detail. Only negative - a little front heavy due to the match barrel - same information mentioned, by Swiss Gun Guy online.