$2,400.00
16.5” HK MR556A4 Complete Upper + Holosun Red dot
- Price Negotiable?: Yes
- Phone Number: Click to view
- Condition: New
- Listing Type: Individual
- City: Saint George
- State: Utah
- Zip/Postal Code: 84790
- Local County (e.g., Summit County): Washington
- Make/Brand: HK
- Model: MR556A4
- Caliber: .223
- Terms: Must agree to terms
- Listed: October 31, 2026 11:56 am
- Expires: 59 days, 5 hours
Add to favorites
Protect yourself from fraud. Click HERE for things to consider.
Description
Brand New 16.5 HK MR556A4 Upper = $2,400 OBO
You won’t find this combo with the RAL8000 rail anywhere. Zero rounds through it. Comes with Holosun HS515GM Red Dot.
These are top-tier, no compromise uppers that have proven reliability and exceptional accuracy. The bolt alone is guaranteed for 150,000 rounds and they piston driven design and adjustable gas block make them amazing suppressor hosts as well. Civilian version of the legendary HK416 used in GWOT.
Shoot me a text with any questions. Willing to make shipping arrangements too.
Listing ID: 6556ae62b833f6ef
- Listed by: Jeffe26
- Member Since: May 29, 2015
Other items listed by Jeffe26
- Sig Sauer P229 Legion Pro
- Sig Sauer P229 Legion SAO + upgrades
- HK MR556A4 Complete Upper Receiver
- Sig Sauer P226 Zev
- Sig Sauer P226 Zev
