This is AR 9MM Complete Upper, perfect calliber for home defense, and perfect length for a tactical use. This 9MM complete upper includes:
- AR 9MM Upper Receiver Billet
- 10" 9MM Barrel 1:8 twist
- 9MM Flash Hider
- 10" M-lok rail
- 9MM Bolt Carrier Group
- AR-15 Mil-spec Charging Handle