Welcome to Red Dot Arms - Red Dot Arms, Inc. is a multi-faceted business dedicated to the education of individuals on the proper use and care of firearms. Red Dot Arms also sell a full line of firearms and ammunition. Whether you are a novice or marksman or somewhere in the middle, Red Dot Arms NRA certified instructors and knowledgeable sales staff can be your resource for all your firearm related questions and needs.

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Ruger AR-556 5.56 NATO/223 REM 16.10" Zoom

Ruger AR-556 5.56 NATO/223 REM 16.10", Black

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Ruger AR-556 5.56 NATO/223 REM 16.10

The Ruger AR-556 5.56 NATO/223 REM 16.10", Black includes (1) 30 round magazines, adjustable post front sights, adjustable Ruger rapid deploy rear sight, and an ergonomic pistol grip.

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Product Description


The milled gas block is located at a carbine length (M4) position for improved balance and handling. Multiple attachment points include a QD socket and bayonet lug, for many sling and accessory mounting options. Serrations on the angled face of the gas block provide a low glare surface. The handguards are made from heat-resistant glass-filled nylon for shooting comfort and durability. The front sight post is elevation adjustable, and a front sight tool is included. The A-2 Style F-Height allows co-witness with many optics. The Ruger® Rapid Deploy folding rear sight provides windage adjustability and is a solid, reliable aiming system when coupled with the elevation adjustable front sight. The rear sight can be folded out of the way to make room for optics but can be instantly redeployed if needed.

The six-position telescoping M4-style buttstock and Mil-Spec buffer tube allow the rifle to be properly sized for different shooters, or varying levels of outerwear or defensive gear. The 16.1 inch medium contour barrel is cold hammer-forged providing ultra-precise rifling for exceptional accuracy, longevity and easy cleaning. The 1:8 twist rate stabilizes bullets from 35 to 77 grains and the 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. ammunition. M4 feed ramps provide improved operational reliability and the matte black oxide finish reduces glare and provides corrosion resistance. A Ruger® flash suppressor is provided and the ½"-28 threaded barrel allows for standard muzzle accessories to be installed.

The ergonomic pistol grip features an extended trigger reach for more precise trigger control. The enlarged trigger guard is designed to allow for gloved shooting.
The chrome-plated bolt carrier inside diameter and chrome-plated gas key inside diameter provide exceptional resistance to hot gases. The gas key is staked so that it will not loosen after extensive firing. A matte black oxide finish on the exterior of the bolt carrier provides corrosion resistance. Includes one 30-round Magpul® PMAG® magazine.


  • Caliber: 5.56 NATO/223 REM
  • Capacity: 30
  • Barrel Length: 
  • Finish: Type III Hard Coat Anodized
  • Stock: Black Synthetic, Collapsible
  • Action: Semi-Automatic
  • Thread Pattern: 1/2"-28
  • Sights: Adjustable Post- front, Adjustable Ruger® Rapid Deploy- rear
  • Length of Pull: 10.25" - 13.50"
  • Twist: 1:8" RH
  • Height: 8.00"
  • Weight: 6.5 lbs
  • Overall Length: 32.25" - 35.50"
  • Grooves: 6
  • Width: 2.5"
Ruger AR-556 5.56 NATO/223 REM 16.10 Ruger AR-556 5.56 NATO/223 REM 16.10

Additional Information

Additional Information

SKU 8500
UPC 0736676085002
Manufacturer Ruger
Type Semi-Auto
Action Type No
Barrel Length N/A
capacity N/A
Finish N/A
Overall Length N/A
Safety N/A
Sight N/A
Grips N/A
Number of Mags N/A
Price $625.99
Available for In-Store Pickup Yes
Bin Number No


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Firearms Policy

How to Buy a Firearm or Ammunition

Federal firearms laws prevent the sale of a weapon from Red Dot Arms, LLC. directly to an individual in another state (we are located in Illinois). We must ship your firearm directly to an FFL Dealer near you. The steps to follow are:

  1. Order your firearm online using our secure shopping cart. If you know the FFL dealer you are going to use at time of order placement (not a requirement) enter his name and address into the 'Ship To' field.
  2. Find an FFL dealer near you that will accept the transfer of the firearm for you. Most sporting goods stores and pawn shops will provide this service for a small fee. Also, gun clubs, shooting ranges, etc. may provide this service to you. If you don't know which FFL dealer to use in your area, put a comment in your order and we will help you locate one near you. We have access to a large list of dealers in the USA that will gladly handle a transfer for you. Most dealers charge around $25 for a transfer. You must confirm the transfer with your local FFL dealer in advance.
  3. Next, have the dealer send us a copy of his signed license if we don't already have it on file. To check whether a license is on file, contact us. Please Note: It is now legal for us to accept a faxed or e-mailed copy of your dealers license! 
  4. Make sure the dealer knows the firearm is coming from Red Dot Arms. If you used a dealer that we already have on file, call him to let him know that a gun for you is on the way.
  5. We will send you an email when the firearm ships, which will include a tracking number.

Backorder Policy

Backorder Policy

If an item is available for Backorder, you can still ADD it  to your Cart, and place the order. Typically, items on Backorder require between 6-10 Weeks before fullfillment. If you have multiple products in your Cart during checkout, items that are IN STOCK, will ship first and your Backordered products will ship seperately. 

Red Dot Arms will notify you via email when your Backordered item is fullfilled. At anytime, you can also login to your Account for shipping status. 

Why Backorder? 

Due to the nature of the current market landscape, certain items are in high demand. By placing a Backorder, it ensures that you will be at the top of the list when HOT items become available on the Red Dot Store. 

Will My Credit Card Be Charged for a Backorder?

No. Your credit card and the purchase amount will only be charged at the time of order fullfillment.