This is a NCSTAR Rifle Case known as the Discreet Carbine Case, model CV3DIS2947T-26.
This Carbine Case will fit an AR-15/ M4 carbine with a 16" Barrel" with the Carbine broken down into the separate Upper & Lower Receivers.
Features:
Lockable Heavy Duty Zipper
Adjustable Shoulder Strap
Durable Carry Handle Strap