Daniel Defense DDM4-300-S .300 Blackout Compete Upper with Vertical Grip - Black - 10.3"

Manufactured by Daniel Defense
SKU: 23-088-19020-047
MPN: 23-088-19020-047
Manufactured by Daniel Defense
(0) No Reviews yet

Out of Stock



The upper receiver set of the Daniel Defense M4 300 S is designed for those who need to fit the multi-function short barrel in the multi-function 300 Blackout cartridge. The 300S URG is built around a cold hammer forged 10.3-inch strength-to-weight (S2W) profile barrel. Compared with similar 5.56 mm platforms, it can provide 0.30 caliber projectiles and has a greater muzzle energy. The barrel is equipped with a DD improved flash suppressor to reduce the flash. The low-key, pistol-length gas system can provide a stable and reliable cycle under harsh conditions and reduce recoil. The DDM4 Rail 9.0 can shield barrels and gas blocks, and provide ample space for the safe installation of multiple accessories.

  • Mil-Spec Upper with Indexing Marks and M4 Feed Ramps
  • CNC Machined of 7075-T6 Aluminum
  • Type III Hard Coat Anodized
  • Chrome Moly Vanadium Steel Cold Hammer Forged barrel
  • 1:8 Twist
  • 10.3" S2W Profile
  • Pistol Length Gas System
  • Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested
  • Pinned Low Profile Gas Block CNC Machined of 4140 Hardened Steel and Mil-Spec Heavy Phosphate Coating
  • Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished
  • BCG: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key
  • Includes vertical grip

Three DD rail panels made of Santoprene are detachable and heat-resistant up to 300°F. They provide a firm and comfortable grip while protecting the supporting hands from heat. The Daniel Defense Vertical Grip can provide excellent control capabilities. The new independent ambi GRIP-N-RIP charging handle can accommodate left-handed and right-handed shooting, and is designed suppressor use, and has a gas-proof function, which can direct the airflow upwards and away from the face of the operator. All Daniel Daniel complete upper receiver sets are equipped with M16 profile BCG.

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...
See More


AssemblyComplete Assemblies
Barrel ContourS2W
Barrel Length10.3
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandDaniel Defense
Caliber Gauge300 Blackout
Gas System LengthPistol
Gas System TypeDirect Impingement
Handguard9.55 in Daniel Defense MK18 RIS II
Muzzle DeviceDaniel Defense Flash Suppresor
Twist Rate1:8

Ratings & Reviews

No reviews available

Be the first to Write a Review