Daniel Defense DD4 RIS III S 5.56 NATO SBR 11.5" Barrel - FDE

Daniel Defense DD4 RIS III S 5.56 NATO SBR 11.5" Barrel - FDE

The Daniel Defense DD4 RIII S is a purpose-built AR15-style short-barreled rifle engineered for elite performance in high-stakes environments. Designed with a fully ambidextrous lower receiver and GRIP-N-RIP charging handle, this rifle empowers both left- and right-handed shooters to maintain control without compromise. Every component—from the Cold Hammer Forged 11.5" barrel to the RIS III M-LOK handguard—is crafted for durability, accuracy, and adaptability.

Modeled after SOCOM’s legendary RIS II system, the 10.5" RIS III rail surrounds a free-floating barrel for enhanced harmonics and precision. The carbine-length gas system ensures smooth cycling and reduced recoil, even under harsh conditions. Paired with Daniel Defense’s ergonomic buttstock and pistol grip, this rifle delivers unmatched comfort and control in any scenario.

Fully Ambidextrous Controls
Bolt catch, mag release, and safety selector accessible from either side for seamless operation.

Cold Hammer Forged Barrel
11.5" Government Profile barrel delivers superior accuracy and extended barrel life.

Free-Floating Rail System
RIS III handguard ensures consistent barrel harmonics and supports M-LOK accessories.

Enhanced Flash Suppressor
Reduces muzzle flash more effectively than traditional A2 birdcage designs.

Flared Magazine Well
Beveled magwell enables faster, more secure reloads under pressure.

Ergonomic Buttstock
Features nonslip cheek weld, interchangeable butt pads, and integrated QD sling point.

Comfort-Focused Pistol Grip
Soft-touch overmolding and optimized wrist angle for fatigue-free handling.

6-Bolt Bolt-Up System
Battle-tested design ensures rail rigidity and barrel stability.

Detachable Lower Rail
Removable section allows customization without compromising structural integrity.

Specifications

• Caliber: 5.56mm NATO
• Action: Semi-Auto
• Operating System: Carbine, Direct Impingement
• Barrel Length: 11.5"
• Barrel Profile: Government
• Barrel Material: Chrome Moly Vanadium Steel
• Barrel Finish: Chrome Lined, Heavy Phosphate Coated
• Twist Rate: 1:7
• Gas Block: Pinned Low Profile, 4140 Hardened Steel
• Muzzle Device: Daniel Defense Flash Suppressor
• Muzzle Thread: 1/2 × 28 TPI
• Bolt Carrier Group: M16 Profile, Chrome Lined, MP Tested
• Buffer: H Buffer
• Handguard: RIS III 10.5", M-LOK Compatible
• Charging Handle: GRIP-N-RIP, Fully Ambidextrous
• Lower Receiver: 7075-T6 Aluminum, Fully Ambidextrous
• Upper Receiver: 7075-T6 Aluminum, M4 Feed Ramps
• Receiver Extension: 6-Position Mil-Spec
• Buttstock: Daniel Defense, Glass-Filled Polymer
• Pistol Grip: Daniel Defense, Glass-Filled Polymer
• Mounting System: M-LOK
• Magazine: DD Magazine
• Weight: 5.92 lbs
• Length: 27 7/8" – 31 1/4" (with muzzle device)
• Case: Daniel Defense Full-Latch Impact Plastic Case
• Country of Origin: USA