One piece combat rail from Midwest Industries comes with everything you need for installation. It includes: Barrel Nut, Barrel Nut Wrench, Torque Plate, Picatinny Rail attachment and Hex Keys.
Specifications:

Type	Handguard
Firearm Type	AR-15
Firearm Model
Material	6061 Aluminum
Finish	Black Hard Coat Anodized
Features
Adjustment Type
Positions	7
Length of Pull
Rails
Texture Type
Swivel Studs
Free Floating	Yes
Grip Type
Tube Included
Max Capacity