The Daniel Defense M4A1 RIII brings a modern, lighter-weight evolution to the battle-proven DDM4 platform—offering fully ambidextrous controls and premium ergonomics for right- and left-handed shooters alike.
This model features a 14.5″ Cold Hammer Forged barrel with a pinned and welded flash hider, achieving an NFA-compliant 16″ overall barrel length. Chambered in 5.56 NATO, it uses a mid-length gas system for smoother cycling, reduced recoil, and enhanced durability over high round counts.
Equipped with a 12.5″ RIS III M-LOK handguard, this rifle provides ample real estate for mounting lights, lasers, grips, or bipods while maintaining rigidity and heat resistance. The full-length 1913 Picatinny rail ensures seamless integration of optics and iron sights.
Outfitted with OEM Daniel Defense stock and grip, the M4A1 RIII is made to run hard under pressure. Built from rugged materials and finished in classic black, this rifle balances strength, speed, and modern control features in a combat-ready configuration.
Key Features:
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Caliber: 5.56x45mm NATO
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Capacity: 30+1
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Barrel Length: 14.5″ (Pinned & Welded Flash Hider for 16″ OAL)
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Barrel Type: Cold Hammer Forged Chrome Moly Vanadium
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Gas System: Mid-Length
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Rail System: 12.5″ RIS III Free-Float M-LOK Handguard
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Controls: Fully Ambidextrous (Safety Selector, Mag Release, Bolt Catch)
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Stock: Daniel Defense Collapsible Stock
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Grip: Daniel Defense Pistol Grip
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Muzzle Device: Flash Hider (Pinned & Welded)
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Finish: Matte Black
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Receiver: 7075-T6 Aluminum, Hardcoat Anodized
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Includes: 1x 30-Round Magazine
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Weight: Approx. 6.5 lbs. (Unloaded)
At Sirius Arms Company, every rifle we offer is vetted by gunsmiths who know how hard gear gets run in the real world. The M4A1 RIII is built for professionals and serious shooters who demand full control, adaptability, and trusted performance under pressure.
