Introducing the RUC DI Complete Upper. Bringing the highest quality parts to the market, while offering the best value as well. This complete upper utilizes a direct impingement operating system on our new and improved Rainier Arms Select barrel. Pairing up with our Urban Combat Rail to provide shooters with a rock solid handguard that can take any abuse. The complete upper is finished off with our Rainier Industries Avalanche ANC charging handle and our Rainier Arms FHV2 Flash Hider. 

Upper Build:

• Rainier Arms Select 5.56 NATO Barrel - 16"
• Rainier Arms Forged Upper Receiver
• Rainier Arms Urban Combat Rail - 15"
• Rainier Arms Precision BCG
• Rainier Arms Avalanche ANC Charging Handle
• Rainier Arms Low Profile .750 Gas Block
• Rainier Arms FHV2 Flash Hider