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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Diamondback M4 Carbine 223 REM/5.56 NATO 16" Zoom

Diamondback M4 Carbine 223 REM/5.56 NATO 16", Black, Nickel Boron

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Diamondback M4 Carbine 223 REM/5.56 NATO 16

The Diamondback M4 Carbine 223 REM/5.56 NATO 16", Black, Nickel Boron includes (1) 30 round magazine, has collapsible and adjustable stock, and does NOT have sights.

Availability: Out of stock


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Product Description


Diamondback Firearms is proud to announce its line of DB15 rifles made entirely in the USA! Starting with the tried-and-true, U.S. Military-proven gas-impingement system and using only the highest quality components machined in Diamondback s CNC facility. The DB15 raises the bar when it comes to features and performance when compared to others. From the modified Diamondback aluminum four-rail handguard, to a variety of color, sight, and stock options, the Diamondback DB15 represents value and versatility all at a very affordable price.


  • Caliber: 223 REM/ 5.56 NATO
  • Capacity: 30
  • Barrel Length: 16"
  • Barrel:  16" 4140 Chrome-Moly, M4 Contour, Free Float
  • Finish: Black and Nickel Boron  
  • Action: Semi-Automatic
  • Lower Receiver:  Nickel Boron Coated Forged 7075 T6 Aluminium
  • Upper Receiver:  Nickel Boron Coated A3 Flattop Forged 7075 T6 Aluminum, T-Marked
  • Stock: MAG PUL CTR, Commercial Tube, 6 position
  • Flash Hider:  A2
  • Trigger: Standard
  • Safety: Lever
  • Stock: Collasible/ Adjustable
  • Weight: 6.6lbs
  • Barrel Twist Rate: 1 x 9
  • Bolt Carrier:  Nickel Boron Coated, Shot-Peened, Magnetic Particle Inspected Mil Spec 8620 carrier
  • Handguard:  Diamondback Aluminum Modified Four Rail
  • Pistol Grip:  MAG PUL MIAD
  • Overall Length: (Stock Collapsed):  32.5"
  • Overal Length: (Stock Expanded):  36.25"
  • Sights:  No Sights
Diamondback M4 Carbine 223 REM/5.56 NATO 16 Diamondback M4 Carbine 223 REM/5.56 NATO 16

Additional Information

Additional Information

UPC 0815875011774
Manufacturer Diamondback
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/Stock N/A
Number of Mags N/A
Price $928.99
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.