Daniel Defense DDM4 300S SBR - 300 BLK

Manufactured by Daniel Defense
SKU: 02-122-17026-047
MPN: 02-122-17026-047
Manufactured by Daniel Defense
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NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

Items that are regulated by the ATF and NFA have restrictions and requirements: •Your Entire Order will ship only to a Federal Firearm License holder •NFA restricted items require class 3 licensing and documentation •A copy of your order/invoice as well as the current FFL License for your local dealer must be emailed to ffl@primaryarm



This is an NFA regulated short barreled rifle (SBR). Know your jurisdiction's NFA laws before ordering this rifle.

The Daniel Defense MK18 is as close a civilian can get to the "real deal"! This factory short barreled rifle matches a 10.3" cold hammer forged barrel with the same RIS II quad rail handguard in use by USSOCOM since 2005. To get the most of the shortened barrel, this rifle has been chambered in 300 BLK, providing similar ballistics to 7.62x39mm when using supersonic ammunition while remaining highly effective and exceptionally quiet when running subsonic loadings through a suppressor. With a flared magazine well and rugged, ergonomic furniture, the MK18 is unparalleled in size, weight, or performance.

  • Enhanced lower receiver with flared magazine well 
  • Rear QD sling swivel cup
  • Reliable carbine length gas system 
  • Heavy buffer for smooth recoil
  • M16 cut MIL-SPEC bolt carrier group with properly staked gas key
  • Chrome lined bore
  • 9.55" MK18 Rail Interface System (RIS) II provides plenty of accessory space
  • Includes 3 rail covers
  • Effective flash suppressor helps tame flash from the short barrel
  • Daniel Defense overmolded pistol grip and collapsible stock
  • Rail has been anodized black
  • 300 BLK chambering makes the most of the 10.3" barrel

Daniel Defense is a privately held firearms manufacturer located in Black Creek, Georgia. Committed to quality and continuous improvement, Daniel Defense creates the world’s finest weapon systems, precision rail systems, and accessories. They are intensely focused on providing top quality small arms solutions to our military and law enforcement communities, as well as to civilians seeking premium rifles for home defense, hunting, and sport shooting. Daniel Defense: Lighter. Stronger. Better...
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Barrel CoatingManganese Phosphate
Barrel ContourS2W
Barrel Length10.3
Barrel LiningChrome
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandDaniel Defense
Caliber Gauge5.56 NATO
Gas System LengthCarbine
Gas System TypeDirect Impingement
Handguard9 in Daniel Defense DDM4 Quad Rail
Muzzle DeviceFlash Hider
Thread Pattern1/2 X 28
Twist Rate1:8
Weight5.77 lbs

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

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