Daniel Defense DD4 MK18 RIII SBR 5.56mm 10.3″ Barrel Black – 32rd

The Daniel Defense DD4 MK18 RIII is a premium short-barreled rifle engineered for operators and serious enthusiasts who demand elite-level performance in a compact platform. Built on the proven MK18 architecture, this upgraded RIII variant delivers a refined balance of reduced weight and enhanced operational flexibility without sacrificing the rugged durability Daniel Defense is known for.

At the heart of this SBR is the exclusive RIS III rail system — an evolution of the SOCOM-developed RIS II — featuring a lighter profile while retaining exceptional strength and versatility. Multiple M-LOK attachment points provide a wide mounting surface for tactical lights, laser aiming devices, vertical grips, and other M-LOK-compatible accessories. The RIS III’s 6-Bolt Bolt-Up attachment system is rated to withstand the intense recoil of an M203 grenade launcher, underscoring its combat-grade construction.

Fully ambidextrous controls — including the safety selector, bolt release, and charging handle — allow both left- and right-handed shooters to operate the rifle efficiently without breaking their grip. The 10.3″ chrome-lined, heavy phosphate-coated Government-profile barrel delivers outstanding maneuverability in tight spaces while maintaining the corrosion resistance and longevity expected from a professional-grade firearm. Ships with a 32-round magazine.

⚠️ This item is an NFA-regulated Short-Barreled Rifle (SBR). Transfer requires ATF Form 4 approval and payment of the applicable $200 tax stamp. Eligibility and transfer requirements vary by state. Please consult your local laws before ordering.

Order online today and let VanTon Arms handle your NFA transfer with competitive pricing and nationwide service.