Daniel Defense DD4 RIII — 16" Barrel, 5.56 NATO | Free-Float RIS III M-LOK® Handguard | Ambidextrous Lower | GRIP-N-RIP Charging Handle | Model: 02-191-03270-067 | UPC: 818773022910
Purpose-built for serious shooters, the DD4 RIII (16") combines Daniel Defense’s battle-proven engineering with modern ergonomics and accessory flexibility. Chambered in 5.56 NATO, this premium AR-15 pattern rifle features a 16-inch cold hammer-forged barrel, a lightweight RIS III free-float M-LOK® handguard, and a fully ambidextrous lower receiver that makes every manipulation faster—left- or right-handed. If you’re after a go-anywhere carbine for duty, defense, and demanding range days, the DD4 RIII delivers the accuracy, durability, and control Daniel Defense is known for.
Why the DD4 RIII?
Accuracy you can count on: Daniel Defense’s cold hammer-forged barrels are renowned for long service life and consistent precision.
Modern attachment ecosystem: The RIS III handguard gives you rigid top rail alignment and M-LOK® at the 3/6/9 o’clock for lights, switches, bipods, and handstops—without excess weight.
True ambidexterity: A fully ambi lower (bolt catch/release & mag release) plus the GRIP-N-RIP ambi charging handle streamlines reloads, lock-backs, and immediate action drills from either shoulder.
Soft, reliable cycling: A mid-length gas system and a low-profile gas block deliver smooth recoil impulse and dependable function across a wide range of 5.56/.223 loads.
Key Features & Advantages
Caliber: 5.56 NATO (accepts .223 Rem) for broad ammo availability.
Barrel: 16" cold hammer-forged, government/profiled steel with 1:7" twist to stabilize common duty and match bullet weights.
Muzzle Device: Factory flash suppressor helps tame muzzle signature and blast in low-light environments.
Handguard: RIS III free-float M-LOK® rail (top Picatinny) for secure, repeatable accessory mounting and optimal barrel harmonics.
Receiver Set: Precision-machined 7075-T6 aluminum upper & ambi lower, Type III hard-coat anodized matte black.
Controls: Ambidextrous mag release, bolt catch/release, GRIP-N-RIP ambi charging handle; enlarged trigger guard.
Trigger: Clean MIL/utility-grade trigger suited for duty reliability; easily upgradable if desired.
Furniture: Daniel Defense stock and pistol grip with comfortable, non-slip texturing.
Sling & Rail Options: QD points on stock/handguard locations (varies by setup) for two-point slings; top rail continuity for BUIS or clip-on devices.
Reliability: Mid-length gas + free-float system + pinned/low-profile gas block for durable, consistent operation.
Note: Specific handguard length, furniture style, and small-part details can vary by production lot. Always verify the contents and configuration on your box label.
Performance You’ll Notice
Flatter shooting, faster splits: Mid-length gas and a free-float rail help the muzzle track smoothly for quicker follow-ups.
Accessory freedom: Zero-shift mounting for high-candela lights, IR, pressure pads, and bipods without contacting the barrel.
Repeatable zero: Rigid top rail interface supports BUIS and optics bridges while preserving point of impact.
Built to last: CHF barrel + quality coatings mean high round-count durability and easier cleanup.
Ideal Use Cases
Duty/Professional: Ambi controls and reliable cycling for high-consequence environments.
Home & Property Defense: Compact handling with rail space for a weapon-mounted light and optic.
Training & Carbine Classes: High round-count comfort with soft recoil impulse and durable components.
Practical Competition/Recce: Lightweight rail and consistent accuracy for dynamic field courses.
Set-Up Tips
Optics: Pair with a rugged red dot (1/3-co-witness irons) or a lightweight 1-6x/1-8x LPVO for do-all versatility.
Light & Switch: Mount a WML at 10–11 or 1–2 o’clock with a tape switch routed through M-LOK® cable guides.
Sling: A quick-adjust two-point sling supports transitions and retention without snagging the rail.
Specifications (Quick View)
Model: DD4 RIII (16")
Caliber: 5.56 NATO / .223 Rem
Barrel: 16" cold hammer-forged, 1:7" twist
Gas System: Mid-length, low-profile gas block
Handguard: RIS III free-float M-LOK® (top Picatinny)
Receivers: 7075-T6 aluminum, hard-coat anodized
Controls: Ambidextrous lower + GRIP-N-RIP ambi charging handle
Muzzle Device: Flash suppressor (factory installed)
Finish/Color: Matte black
Magazine: Standard AR-15 pattern (capacity subject to local laws; magazine(s) included may vary by region)
SKU/Part #: 02-191-03270-067
UPC: 818773022910
(Overall length, weight, and included accessories can vary. Consult the product label/manual for exact measurements.)
Compliance, Safety & Maintenance
Know Your Laws: Verify state/local regulations on features and magazine capacity.
Break-In & Lube: Lightly lube the BCG and charging handle; confirm function with your preferred duty/training load.
Torque & Check: Re-check optic and accessory screws after the first range session.
Clean Smart: Keep the BCG, chamber, and gas system properly maintained for maximum reliability.
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The Bottom Line
The Daniel Defense DD4 RIII (16") brings together a CHF barrel, ambidextrous controls, and the RIS III M-LOK® ecosystem to create a carbine that’s rugged, accurate, and easy to run. If you’re investing in one rifle to cover training, defense, and real-world reliability, this DD4 is built to be your first and final answer.
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