This is not a gun, there is no lower included. Everything in the picture is included.
http://www.theammosource.com/index.php?main_page=product_info&cPath=2_24_591&pr oducts_id=3538
The M7 Complete Kit includes:
Flat top receiver
7.5” High-performance barrel
Claymore Muzzle Brake
Bolt Carrier Assembly
Charging Handle
7.6” Alpha Rail
Modular Combat Grip
Diamond DOA Rear Folding BattleSight
M4 Front Folding BattleSight
Sight Adjustment Tool
BattleAx Lightweight Stock
BattleAx Control Grip
Recoil Spring and H2 Buffer
Receiver extension and castle nut
OEM M4 Sling Mount
One-point BattleSling
Seven BattleMags
Custom-Fitted Deployment Case
Otis Cleaning Kit