We will be attending TriggrCon betwen July 25 and July 28.
All orders made during these dates will ship on Monday, July 31. Thanks for your understanding.
Rainier Arms flattop upper receiver minus forward assist is carefully machined to mil-spec to serve as a great foundation for a quality AR rifle.
- Made from 7075 - T6 aluminum
- Type III hard coat anodized
- Matte black finish
- Dry lube coating: Inside to reduce wear and adds lubricity
- "T - Marked" engraved
- M4 Feed Ramp
- Upper Parts Kit Not Included - Available here