Leapers, Inc. - UTG Model 4, Combat Ops S3, Stock Kit, 6-Position Mil-Spec Stock Assembly, includes Extension Tube, Buffer, Buffer Spring, Tear-drop Ring and Castle Nut, Black Finish RBUS3BM
Specifications:

Type	Buttstock Kit
Firearm Type	Rifle
Firearm Model	AR-15/M-16
Material	Aluminum/Polymer
Finish	Black
Features
Adjustment Type
Positions	6
Length of Pull
Rails
Texture Type
Swivel Studs
Free Floating
Grip Type
Tube Included
Max Capacity