Details
The DD4 RIII S AR15 style firearm features a fully ambidextrous lower that allows both left- and right-handed shooters to operate the bolt catch, safety selector, and magazine release without having to move or remove their dominant hand from the rifle’s grip, while its GRIP-N-RIP Charging Handle is fully ambidextrous as well. A 10.5 inch RIS III rail—modeled after the revolutionary RIS II two-piece handguard developed for SOCOM—features M-LOK attachment for lighter weight and surrounds a free-floating, Cold Hammer Forged 11.5 inch Government Profile barrel. Along with the increased control provided by the ambidextrous lower, this short-barreled rifle delivers optimal maneuverability, reliability, accuracy, and terminal ballistics using a wide variety of ammunition, while its carbine length gas system provides smooth, reliable cycling under harsh conditions and reduces perceived recoil. This rifle also comes with the ergonomic Daniel Defense Buttstock and Pistol Grip.
NFA DISCLAIMER
This firearm is a regulated item by the National Firearms Act (NFA). Please check with your local and state municipalities for any further regulatory requirements. It is the buyer's responsibility to make sure they comply with all NFA rules and applicable laws.
MATERIALS & CONSTRUCTION
- LOWER RECEIVER: Fully Ambidextrous Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
- 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 and 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
- BUFFER: H Buffer
- SIGHTS: Sold Separately
- HANDGUARD: RIS III 10.5, CNC Machined of 6061-T6 Aluminum, Flat Dark Earth Type III Hard Coat Anodized
- CHARGING HANDLE: GRIP-N-RIP Charging Handle, Body CNC Machined of 7075-T6 Aluminum, Handles & Latch CNC Machined of 6061-T6 Aluminum, Heavy Duty Stainless Steel Roll Pins, Type III Hard Coat Anodized
- RECEIVER EXTENSION: 6 Position Mil-Spec 7075-T6 Aluminum
- BUTTSTOCK: Daniel Defense Buttstock, Glass Filled Polymer with Soft Touch Overmolding
- PISTOL GRIP: Daniel Defense Pistol Grip, Glass Filled Polymer with Soft Touch Overmolding
- Made in the USA!
Specifications
Mounting System | M-LOK |
---|---|
Caliber | 5.56mm NATO |
Muzzle Thread | 1 ⁄ 2 × 28 TPI (Threads Per Inch) |
Gas System | Carbine |
Barrel Length | 11.5" |
Barrel Profile | Government |
Product Weight | 5.92 lbs |
Length | 27 7/8" - 31 1/4" (w/ muzzle device) |
Magazine | DD Magazine |
Case | Daniel Defense Full-Latch Impact Plastic Case |
Manufacturer | Daniel Defense |
Features


Muzzle Device
Improved design reduces flash signature compared to the traditional A2 birdcage for AR15 style firearms

Cold-Hammer Forged Barrel
Intense hydraulic pressure process that forms the most accurate and longest-lasting barrels attainable

Flared Magazine Well
Widened and beveled magwell funnels magazines into place for the fastest, most secure reloads possible

Ambi Safety Selector
For right or left-handed shooters

Free Float Rail System
Proprietary 4- or 6-bolt attachment to the upper receiver allows the rail system to free float the barrel, which will ensure barrel harmonics are not affected during operation

Buttstock
Features a nonslip cheek weld, interchangeable butt pads, and an integral QD point

QD Points
Integrated quick-disconnect points for the attachment of slings

M-Lok
Features M-LOK attachment technology

Pistol Grip
Ergonomic wrist angle, integral trigger guard and nonslip grip for comfort and control in all conditions

Detachable Lower Rail
Lower section is removable without affecting the structural integrity.

RIII QD Points
Integral QD Points on each side near the receiver are flush and eliminate the need to install an aftermarket QD mount.

6-Bolt Bolt-Up System
Patented Bolt-Up System’s 6-bolt design is battle tested and allows the rail system to free float the barrel, which will ensure barrel harmonics are not affected during operation.

Ambi Mag Release
Mag Release is accessible on both sides of the receiver so the shooter does not have to break his/her shooting grip to reach the release.

Ambi Bolt Catch
Bolt Catch is accessible on both sides of the receiver, giving right-handed shooters the ability to lock and release the bolt without having to remove their hand from the grip.