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Daniel Defense DDM4 MK12 5.56 NATO 18-inch Rifle

Daniel Defense DDM4 MK12 5.56 NATO 18-inch Rifle

SKUTSW|146316 Conditionnew CategoryAR Rifles
$2657.29
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About this product

The Daniel Defense DDM4 MK12 is constructed around an 18-inch stainless steel barrel that was Cold Hammer Forged and treated for corrosion resistance. The rifle employs a rifle-length direct impingement gas system and a precision-engineered gas block built to Crane specifications. The upper receiver is fitted with a free-floating DDM4 Rail 12.0 quad rail to support optics and accessories, while 7075-T6 aluminum construction provides a durable platform for field use.

Key Specifications

  • The action is Semi-Auto.
  • The barrel length is 18 inches and is described as stainless steel.
  • The chambering is .223 Rem / 5.56 NATO.
  • The magazine configuration is a 10 + 1 fixed magazine.
  • The overall weight is 7.40 pounds.
  • The rifling twist rate is 1:7.
  • The stock is a 6-position design with SoftTouch overmolding.
  • The receivers are constructed from 7075-T6 aluminum.
  • The muzzle device is a flash suppressor.
  • The upper features a free-floating DDM4 12.0 quad rail.

This DDM4 MK12 combines a long, precision-oriented barrel and a rigid free-floating rail to support accurate, repeatable shooting with a range of optics and accessories. Its durable materials and user-focused furniture make it suitable for precision-oriented applications where a stable, adaptable platform is required.

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Specs at a glance

Daniel Defense DDM4 MK12 5.… SPECS AT A GLANCE 18 inches SIZE
Editorial diagram — measurements verified during testing.
Sources & methodology. Editorial review and rating by Travis Caldwell based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
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$2657.29