Lanbo's Armory
×
×
My Account
  • Home
  • Log In / Register
  • Shopping Cart
  • Checkout
  • Wish List
Products
  • Specials
  • New Products
  • Featured Products
  • All Products
  • Our Manufacturers
  • Advanced Search
Information
  • Shipping & Returns
  • Privacy Notice
  • Conditions of Use
  • Contact Us
  • Site Map
  • Gift Certificate FAQ
  • Discount Coupons
  • Newsletter Unsubscribe
  • About Us
  • How to Buy a Gun
  • News and Events
Shop by Category
  • ⚠ Closeout Corner
  • 🎯 Targeted Savings
  • FALL DEALS
    • Firearms
    • Frames & Receivers
      • Hand Guns
      • Bolt/Lever Action
      • Derringer
      • Revolver
      • Semi-Automatic
      • Single Shot
      Long Guns
        Rifles
        • Bolt/Lever Action
        • Semi-Automatic
        Shotguns
        • Pump/Lever/Break Open
        • Semi-Automatic
    • Services
    NFA Weapons
    • Short-Barreled Weapons
    • Silencers
  • Airguns
  • Ammunition
  • Barrels, Choke Tubes, & Muzzle Devices
  • Books, Software, & DVDs
  • Cleaning Equipment
  • Clothing
  • Electronics
  • Grips, Pads, Stocks, Bipods
  • Hard Gun Cases
  • Holsters & Pouches
  • Knives & Tools
  • Lights, Lasers, & Batteries
  • Magazines
  • Misc. Accessories
  • Non-Lethal Defense
  • Optical Accessories
  • Optics
  • Parts
  • Reloading Equipment
  • Safes & Security
  • Safety & Protection
  • SBR Barrels & Upper Receivers
  • Sights
  • Slings & Swivels
  • Soft Gun Cases, Packs, Bags
  • Survival Supplies
  • Targets
  • Tasers
  • Upper Receivers & Conversion Kits
Shop by Category
  • ⚠ Closeout Corner
  • 🎯 Targeted Savings
  • FALL DEALS
    • Firearms
    • Frames & Receivers
      • Hand Guns
      • Bolt/Lever Action
      • Derringer
      • Revolver
      • Semi-Automatic
      • Single Shot
      Long Guns
        Rifles
        • Bolt/Lever Action
        • Semi-Automatic
        Shotguns
        • Pump/Lever/Break Open
        • Semi-Automatic
    • Services
    NFA Weapons
    • Short-Barreled Weapons
    • Silencers
  • Airguns
  • Ammunition
  • Barrels, Choke Tubes, & Muzzle Devices
  • Books, Software, & DVDs
  • Cleaning Equipment
  • Clothing
  • Electronics
  • Grips, Pads, Stocks, Bipods
  • Hard Gun Cases
  • Holsters & Pouches
  • Knives & Tools
  • Lights, Lasers, & Batteries
  • Magazines
  • Misc. Accessories
  • Non-Lethal Defense
  • Optical Accessories
  • Optics
  • Parts
  • Reloading Equipment
  • Safes & Security
  • Safety & Protection
  • SBR Barrels & Upper Receivers
  • Sights
  • Slings & Swivels
  • Soft Gun Cases, Packs, Bags
  • Survival Supplies
  • Targets
  • Tasers
  • Upper Receivers & Conversion Kits
SBR Barrels & Upper Receivers
« Prev Listing Next »
HK UPPER MR556A4 5.56 11" BLK

HK UPPER MR556A4 5.56 11" BLK

$2179.00 For an even lower price add to cart.

  • Model: HK51000385
  • Shipping Weight: 8.875lbs
  • Units in Stock 0
  • Units Available at Warehouse 0
  • Manufactured by: Heckler & Koch
Sold Out
To be notified when this product is back in stock please click here
✉ Tell a Friend✎ Write a Review

Heckler & Koch MR556 A4 Upper Receiver, 223 Remington/5.56 NATO, 11" Barrel, Threaded 1/2X28, M-LOK Handguard, Anodized Finish, Black, Fits AR-15 Lower Receivers, Includes Bolt Carrier Group, Charging Handle, Buffer Weight and Buffer Spring 51000385

Product Specifications:
 
UPC: 642230270220     Barrel Length: 11"
Finish/Color: Anodized     Fit: AR-15
Caliber: 223 Remington     Caliber2: 556NATO
Manufacturer: Heckler & Koch     Part Number: 51000385
Model: MR556 A4 Upper Receiver     Type: Upper
Please note that images are provided to us by a third party and as such may not accurately represent the item for sale. Please order based on the part number and description or contact us with any questions.
Let us notify you when this product is back in stock!

Simply enter your details below and we will send you an e-mail when “HK UPPER MR556A4 5.56 11" BLK” is back in stock!

We will not send you any other e-mails or add you to our newsletter, you will only be e-mailed about this product!
  • Home
  •  ::  Shipping & Returns  ::  Privacy Notice  ::  Conditions of Use  ::  Contact Us  ::  How to Buy a Gun  ::  FFL Finder  ::  Advanced Search
Your IP Address is: 216.73.216.238
Copyright © 2026 Lanbo's Armory. Powered by Zen Cart
Parse Time: 0.044 - Number of Queries: 207 - Query Time: 0