Daniel Defense Introduced the DDM4ISR 300

Snapshot 2 (2-13-2013 10-57 PM)

The Daniel Defense DDM4ISR (Integrally Suppressed Rifle) 300 was introduced at SHOT 2013 in Las Vegas.  The ISR is chambered in 300 Blackout and integrates an SBR with a suppressor into one weapon system.   The DDM4ISR comes with a 10.3” barrel and a suppressor that is permanently attached creating a 16” platform requiring only one tax stamp.  The DDM4ISR 300’s sound suppressor is threaded and welded to the proprietary ISR Integrated Gas Block, bringing the barrel length to 16.145”. The baffle stack is also removable to facilitate routine maintenance. Attenuation test data is yet to be developed and published; however, the unofficial estimate is a 30 db reduction in SPL.

The DDM4ISR is typical of Daniel Defense build quality and scrupulous attention to detail.P1000506

  • Upper Receiver: Mil-Spec with Indexing Marks and M4 Feed Ramps
  • Lower Receiver: Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point
  • Barrel: 4150 Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:8, 10.3″ S2W® Profile, Pistol-length Gas System, Salt Bath Nitride Finished, and HP/MPI tested
  • Suppressor: All Stainless Steel Construction and 17-4 Monolithic Baffle.
  • Chamber: 300 BLK
  • Length: 31 ¼” Collapsed
  • Weight: 7.6 lbs
  • Integrated Suppressor: All Stainless Steel Construction, 17-4PH Monolithic Baffle, Salt Bath Nitride Finish, Pinned and Welded Assembly.
  • Bolt Carrier Group: Mil-Spec MP Tested, Properly Staked Gas Key
  • Gas Block: Daniel Defense ISR Integrated Gas Block
  • Handguard: Daniel Defense Modular Float Rail 12.0
  • Rail Sections: 3 Picatinny Modular Rail Sections
  • Made in the USA

Availability looks to be April 2013 with a projected M.S.R.P. of $3,199. This is one rifle worth waiting in line for!

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