Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly

The DD4 RIIIS AR15 style Upper Receiver Group is built around a 11.5 inch Cold Hammer Forged Government Profile barrel with a Daniel Defense Flash Suppressor, a GRIP-N-RIP Charging Handle, and our carbine length gas system. It features a 10.5 inch lightweight RIS III railmodeled after the revolutionary RIS II two-piece handguard developed for SOCOM which features M-LOK attachment for lighter weight. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group. NFA DISCLAIMER Once this part is assembled into a complete firearm, it becomes a regulated item by the National Firearms Act (NFA). Please check with your local and state municipalities for any further regulatory requirements. It is the buyer’s responsibility to make sure they comply with all NFA rules and applicable laws. Specifications for Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly: Manufacturer: Daniel Defense Cartridge: 5.56x45mm NATO Overall Length: 20.5 in Barrel Length: 11.5 in Barrel Profile: Government Gas System Length: Carbine Length Barrel Twist Rate: 1-7 Threads per Inch: 1/2×28 Muzzle Device: Flash Suppressor Finish: Salt Bath Nitride Gun Model: AR-15 Condition: New Fabric/Material: Multiple Handguard Length: 10.5 in Gun Rail: M-LOK Gun Type: Rifle Gun Make: Daniel Defense Barrel Material: Chrome Moly Bolt Carrier Group Included: MIL-SPEC Charging Handle Included: MIL-SPEC Magazine Included: No Mount Type: M-LOK Gas System: Carbine Length Features of Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly:UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat AnodizedBARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:7 Twist, 11.5 inch Government Profile, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI TestedGAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Carbine Length, Direct ImpingementMUZZLE DEVICE: Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride FinishedBOLT CARRIER GROUP: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas KeySIGHTS: Sold SeparatelyHANDGUARD: Daniel Defense RIS III 10.5, Patented, 6-Bolt Bolt-Up System, CNC Machined of 6061-T6 AluminumCHARGING 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 Package Contents: Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly Daniel Defense Warranty: Guaranteed Satisfaction 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 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. Warranty information and warranties are supplied solely by the manufacturer, and not this retailer. This retailer publishes information from the manufacturer for information purposes only, and the manufacturer is solely responsible and liable for any warranty information and warranties published by this retailer. Please reference the appropriate manufacturer documents or reach out to the manufacturer directly for full warranty terms and effective dates. @media screen and (max-width: 400px) { #w-block-one { display:table-row !important; } }