Daniel Defense DD4 RIII-S Short Barreled Upper Receiver Group - 11.5" - FDE

may require shop time to dissasemble, plan on 2 weeks to ship
Sourcing Note::
these uppers come to us factory new, often taken-off a new rifle

DD4 RIII-S Upper Receiver Group - Factory FDE


Next-Gen Mk18 style upper with 11.5” barrel from Daniel Defense

Looking to take your shooting game to the next level? Check out the DD4 RIII-S Upper Receiver Group from Daniel Defense.   With an optimized 11.5” short barrel, the DD4 DRII Upper is built for the modern shooter. The high-quality upper receiver group is perfect for anyone who demands the very best in terms of performance, accuracy, and reliability, and brought to you by one of the better battle-hardened rifle makers:  Daniel Defense, which is known for performance and durability.


Features and Highlights


  • UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized.
  • BARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:7 Twist, 11.5" Government Profile, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested.
  • GAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Carbine Length, Direct Impingement.
  • MUZZLE DEVICE: Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished.
  • BOLT CARRIER GROUP: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key.
  • SIGHTS: Sold Separately.
  • HANDGUARD: Daniel Defense RIS III 10.5, patented, 6-Bolt Bolt-Up System, CNC Machined of 6061-T6 Aluminum, Anodized Type 3, FDE, "Tanodized"
  • CHARGING HANDLE: GRIP-N-RIP Charging Handle, Body CNC Machined of 7076-T6 Aluminum, Handles & Latch CNC Machined of 6061-T6 Aluminum, Heavy Duty Stainless Steel Roll Pins, Type III Hard Coat Anodized.
  • Made in the USA!


Unmatched Performance and Durability in a Short Barreled Package

With its precision engineered components and rugged construction, the DD4 RIII-S Upper Receiver Group is the perfect choice for serious shooters who want to upgrade their AR15 style firearm. Featuring a Cold Hammer Forged Government Profile barrel with a Daniel Defense Flash Suppressor, a GRIP-N-RIP Charging Handle, and our carbine length gas system, this upper receiver group is designed to deliver exceptional performance in any situation. 

The DD4 RIII-S Upper Receiver Group is a great choice for serious shooters who demand the very best, and looking for a compact platform.

Premium Materials and Construction

Whether you're a seasoned pro or just starting out, the DD4 RIII-S Upper Receiver Group has everything you need to take your shooting to the next level. With its lightweight RIS III rail and M16 profile bolt carrier group, this upper receiver group is engineered for maximum accuracy, durability, and reliability.

Featuring a 10.5 inch lightweight RIS III rail, modeled after the revolutionary RIS II two-piece handguard developed for SOCOM, which features M-LOK attachment for increased versatility.


Mounting System



5.56mm NATO

Gas System


Barrel Length


Barrel Profile


Product Weight

3.7 lbs

Rifle Upper Family


Legacy Family 

DD Mk18


Anodized FDE

Preferred Dealer

Charlie's Custom Clones


Daniel Defense

Manufacturer's Product Number:  23-191-02397-011

Order now and take your shooting to the next level with a modern Mk18 style short barreled upper.

Charlie’s loves the blend of old and new, with the nostalgia of the famous DD Mk18 Mod 1, with modern enhancements like lighter weight, slimmer profile and M-LOK, The DD4 RIII-S Upper Receiver Group from Daniel Defense is the great choice for firearm enthusiasts who demand the very best.  What a great way to take your tactical shooting experience to the next level.

Sourcing Note:  Charlie's gets these in stock both as factory upper receiver groups, and also as take-offs from new SBR rifles.  Either are the exact same, except one does not have a factory box.

photos courtesy of Daniel Defense and Pew Pew Tactical

So, what is Charlie's all about?

You may have found us by looking for Daniel Defense upper receivers or DD Mk18 products, and that is awesome.  Charlie's specializes in military correct rifles for shooting enthusiasts, as well as for military and law enforcement.  We are a small business based in Virginia, and our Potomac Armory is a licensed firearms manufacturer and registered DOD contractor and law enforcement dealer.  In a few short years, our consumer brand, Charlie's Custom Clones has grown to be the leading brand for shooting enthusiasts who are looking to increase their proficiency and their armament collection with military rifles and the hobby of clone building, which is just another way of saying that our customers want to buy or build a military correct rifle, largely as collectors, but also as active operators.  The word, "Clone" in our name scares people that think we have fake products.  We do not.  Nothing can be further from the truth, as to have a clone rifle is to have as exact a copy of an actual military issued weapon as a civilian possibly can have. 

In addition to great combat rifles, we carry a large selection of both military correct suppressors, and popular commercial suppressors.  We are a Daniel Defense dealer and Potomac Armory is an OEM manufacturer.  Charlie's directly resells DD manufactured parts, uppers, barrels rails, and full rifles.  We are proud to carry the Daniel product line, and DD has a fantastic reputation as one of the quality AR style manufacturers, with a military style.  Potomac Armory uses the barrels and rails to build military correct clone uppers and rifles.  CCC curates our offering of DD products, to fit our customer lifestyle, but if you are looking for something from DD that we do not carry, let us know.  Most likely, if it is current production, we can get it for you in short order.

We have online chat during business hours, in addition, you can contact us with product questions on Instagram and Facebook at @charliesclones as well as email and phone support.  Let us know how we can help you, and help to make your shooting sports ambitions come true.  Thanks for stopping in.