Daniel Defense DD4 M4A1 RIII 5.56 Rifle 14.5"

The Daniel Defense DD4 M4A1 RIII: Ambidextrous Excellence

Daniel Defense has refined their industry-standard DDM4 platform into a lighter, fully ambidextrous rifle that serves both right- and left-handed shooters with equal capability. The DD4 M4A1 RIII represents the pinnacle of modern direct impingement rifle design, built to exacting military specifications and finished to civilian perfection.

Key Features

Receiver System

• Proprietary lower receiver with enhanced flared magazine well for reliable feeding
• Fully ambidextrous controls throughout
• Mil-Spec upper receiver with indexing marks and M4 feed ramps
• Both receivers CNC machined from 7075-T6 aluminum and Type III hard coat anodized
• Rear receiver QD swivel attachment point for sling mounting

Barrel & Gas System

• 14.5" chrome moly vanadium steel barrel, cold hammer forged with 1:7 twist rate
• M4 profile with chrome lining and mil-spec heavy phosphate coating
• Hammer-tested and magnetic particle inspected for reliability
• Mid-length direct impingement gas system reduces recoil and component wear
• Pinned low-profile gas block machined from 4140 hardened steel

Muzzle Device

• Daniel Defense flash suppressor pinned and welded to barrel
• Extended design for optimal flash reduction
• 17-4 PH stainless steel with salt bath nitride finish

Handguard & Accessories

• Daniel Defense RIS III 12.5" handguard with patented 6-bolt bolt-up system
• M-LOK mounting system for easy accessory attachment and detachment
• 6061-T6 aluminum construction
• GRIP-N-RIP charging handle with heavy-duty stainless steel roll pins
• H buffer and 6-position mil-spec receiver extension
• Daniel Defense polymer buttstock and pistol grip with soft-touch overmolding

Specifications

• Caliber: 5.56mm NATO
• Barrel Length: 14.5" (pinned and welded)
• Gas System: Mid-length
• Mounting System: M-LOK
• Muzzle Thread: 1/2" × 28 TPI
• Weight: 6.39 lbs
• Length: 31.5" – 34.75" (adjustable stock)
• Magazine: Daniel Defense full-latch impact plastic case included

Built for Performance

Every component is manufactured to mil-spec standards and tested for reliability. The mid-length gas system strikes the ideal balance between smooth operation and reduced component stress. The fully ambidextrous design means left-handed shooters enjoy the same ergonomic advantages as their right-handed counterparts—a rarity in the rifle market.

Made in the USA by Daniel Defense, this rifle represents a commitment to quality that extends from the factory floor to your hands. Whether you're training, competing, or simply enjoying the shooting sports, the DD4 M4A1 RIII delivers the precision and reliability that define modern rifle excellence.