Daniel Defense DD4 RIII Complete Upper Receiver 16" Barrel FDE

This upper receiver features a 12.5-inch RIS III lightweight rail with M-LOK attachment points, free-floating the barrel to enhance accuracy. The ambidextrous Grip-N-Rip Charging Handle and M16 Profile bolt carrier group contribute to dependable operation under varied conditions.

Features

• Mil-Spec Upper Receiver with Indexing Marks and M4 Feed Ramps, CNC Machined from 7075-T6 Aluminum with Type III Hard Coat Anodizing
• 16" Cold Hammer Forged Chrome Moly Vanadium Steel Barrel with 1:7 Twist, Government Profile, Mid-length Gas System, Chrome Lined, Heavy Phosphate Coated, and HP/MPI Tested
• Pinned Low Profile Gas Block CNC Machined from 4140 Hardened Steel with Mil-Spec Heavy Phosphate Coating, Mid-length Direct Impingement Gas System
• Daniel Defense Flash Suppressor made of 17-4 PH Stainless Steel with Salt Bath Nitride Finish
• M16 Profile Bolt Carrier Group, Mil-Spec MP Tested, Chrome Lined with Properly Staked Gas Key
• RIS III 12.5" Handguard with Patented 6-Bolt Bolt-Up System, CNC Machined from 6061-T6 Aluminum, Type III Hard Coat Anodized
• Ambidextrous Grip-N-Rip Charging Handle CNC Machined from 7075-T6 Aluminum with 6061-T6 Aluminum Handles and Latch, Heavy Duty Stainless Steel Roll Pins, Type III Hard Coat Anodized

Specifications

• Barrel Material: 4150 Chrome Moly Vanadium Steel
• Barrel Type: Cold Hammer Forged
• Barrel Profile: Government
• Rifling Twist Rate: 1:7"
• Gas System Length: Mid-length
• Muzzle Device: Flash Suppressor
• Weight: 4.35 lbs
• Rail System: RIS III 12.5" with M-LOK