Daniel Defense Mk18 Pistol 300BLK (02-088-22179)

Out of stock

300 AAC BLACKOUT, 10.3" Barrel

The Daniel Defense M4, 300 Pistol is ideal for close quarters and home defense.  This new option from Daniel Defense comes complete with a 10.3” Cold Hammer Forged S2W® barrel, pistol-length gas system, pinned low profile gas block, and DDM4 Rail™ 9.0. 

300BLK (7.62X35)

The 300 AAC BLACKOUT is a .30 caliber cartridges developed for use in AR15-style firearms.  Unlike its wildcat predecessors, the 300 BLK is a SAAMI-standard cartridge.  It provides 7.62x39mm or better ballistics from the AR platform with only a barrel change.  It uses standard 5.56 bolts and magazines.  Ammunition is available in both subsonic and supersonic loadings.


  • LOWER RECEIVER: Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
  • UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
  • BARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:8, 10.3″ S2W® Profile, Salt Bath Nitride Finished, and HP/MPI tested
  • GAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Pistol length, Direct Impingement
  • MUZZLE DEVICE: Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished
  • BOLT CARRIER GROUP: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key
  • BUFFER: H Buffer
  • SIGHTS: Sold Separately
  • HANDGUARD: Daniel Defense DDM4 Rail™ 9.0, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized
  • RECEIVER EXTENSION: Daniel Defense 1.15” Diameter Pistol Receiver Extension
  • PISTOL GRIP: Daniel Defense Pistol Grip, Glass Filled Polymer with Soft Touch Overmolding
  • RAIL PANELS: Daniel Defense Rail Panels made from Santoprene, heat resistant to 300° F.
  • Made in the USA!


All Daniel Defense products carry a 100% satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your product in the most expeditious and inexpensive manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer’s products. Be sure to retain your sales slip as proof of purchase date when making a claim.


Manufacturing # / SKU 02-088-22179
Restricted Shipping Yes
Caliber 300 BLK
Gas System Pistol Length
Product Weight 5.30 lb
Length 27 1/16"
Magazine Magpul PMAG 30-Round
Case Daniel Defense Full-Latch Impact Plastic Case
Manufacturer Daniel Defense
More Information
Law Enforcement N/A
Color No
Display Actual Price In Cart
Manufacturer's Suggested Retail Price 1,699.00
Manufacturer Daniel Defense
Hand N/A
Action N/A
Caliber 300BLKOUT
Type N/A
Barrel Lining N/A
Barrel Rifling N/A
Barrel Length N/A
Barrel Profile N/A
Trade-In N/A
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