We have one of these in stock ready to go!
Found here on the website.
Complete 5.56NATO Upper Receiver Assembly
- 16" Nitrided 1:7: Twist Barrel, threaded 5/8-24
- AAC 51T BLACKOUT™ Flash Hider
- "Full Auto" BCG
- Mid-Length Gas System
- KAC URX Rail
- Ready to drop onto your AR15/M16/M4 lower! Works with an AR lower with "Mil-Spec" push pin locations.