STD-15 Upper Receiver, 12.5" Barrel.

BARREL: 12.5" 5.56 Caliber 1/8 Twist 4150 CMV Heavy Profile With M4 Feed Ramp. Chrome Lined
GAS SYSTEM: Direct Impingement, Carbine Length
UPPER RECEIVER: A3 Mil-Spec 7075-T6 Aluminum With Mil-Spec Hard Anodized Finish.
CHARGING HANDLE: Standard Charging Handle (NOT INCLUDED)
HANDGUARD: 9" M-LOK Rail 
FLASH HIDER: Standard A2 
Finish: Hard Coat Anodized 

This DOES NOT INCLUDE BCG or Charging Handle. You will have to add them to your order.