S&T M4A1 with M203 Grenade Launcher Sports Line - Black 

Safe/Semi/Fully Automatic

Polymer Upper & Lower Receiver Body

Metal  360mm Outer Barrel With 45mm Flash Suppressor (14mm CW)

Polymer 180mm Handguard

Polymer Pistol Grip

Polymer 6 Position Stock With Stock Pipe

Fixed Front Sight

Detachable carry handle reveals a weaver rail (20mm) for any scope or red dot sight

300 Round Magazine (Metal)

With Military M203 Grenade Launcher
Battery & charger included 

S&T M4A1 with M203 Grenade Launche