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A Proven Design with Superior Features

The MK12 Upper Receiver from Daniel Defense is built around an 18" stainless steel barrel, engineered with a rifle-length direct impingement gas system and utilizing the MK12 gas block, which is built to Crane Specifications for USSOCOM.

The Daniel Defense MK12 Upper Receiver features a rugged hard coat anodized Mil-Spec aluminum upper with a hammer forged stainless steel 18" barrel in a 1-7 twist with a MK12 profile.
 

  • MK12 low profile gas block machined from 416 hardened steel, rifle length
  • Daniel Defense 17-4 PH stainless steel flash suppressor
  • Chrome Lined M16 profile bolt carrier group
  • 6061-T6 hard coat anodized 12" Daniel Defense DDM4 Rail

The MK12 Upper Receiver from Daniel Defense offers rugged dependability and precision accuracy in a complete package.


Big Book Catalog, Issue:72, Page:004

DANIEL DEFENSE - MK12 SPR 18" 5.56MM NATO UPPER RECEIVER BLACK

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Cartridge: 5.56 mm NATO

Finish: Black

Style: Complete

Length: 18

Twist: 1-7