Daniel Defense DDM4 300 S 10.3" URG

Daniel Defense’s DDM4 300S Upper Receiver Group delivers high-performance in a compact package. This short-barreled rifle or pistol upper is built around 10.3 inch cold hammer forged barrel with chrome lining and a pistol length gas system. The handguard is Daniel Defense’s DDM4 Rail with a full length flattop picatinny rail for the installation of optics, as well as textured grips for superior control. In addition, the DDM4 300S Upper Receiver Group is outfitted the Daniel Defense Grip-N-Rip charging handle for fast, ambidextrous handling.

Technical Specifications:

• 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 Twist, 10.3" S2W Profile, Pistol Length Gas System, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested
• Gas System: Pinned Low Profile Gas Block CNC Machined of 4140 Hardened Steel and 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
• Handguard: Daniel Defense DDM4 Rail 9.0, CNC Machined from 6061-T6 Aluminum, Type III Hard-Coat Anodized
• Charging Handle: GRIP-N-RIP Charging Handle, Body CNC Machined of 7076-T6 Aluminum, Handles & Latch CNC Machined of 6061-T6 Aluminum, Heavy Duty Stainless Steel Roll Pins, Type III Hard Coat Anodized
• Rails: Daniel Defense Rail Panels Made from Santoprene, Heat Resistant to 300° F
• Mounting System: Picatinny
• Weight: 3.65 lbs

What's in the Box:

Daniel Defense DDM4 300S 10.3" 300BLK URG

Owners Manual