The Faxon ION UltraLight upper receiver in 5.56 NATO features a lightweight 16″ barrel designed for AR-15 pattern lowers.
- Caliber: 5.56 NATO / .223 Remington
- Type: Complete Upper Receiver Assembly
- Compatible Lower: Mil-spec AR-15
- Barrel Length: 16″
- Material: 4150 CMV barrel, 7075-T6 aluminum receiver
- Finish: Black nitride barrel, Type III hard anodized receiver
- Includes: Charging handle, bolt carrier group, handguard
- Installation: Drop-in ready for mil-spec AR-15 lowers
