Geissele Automatics Super Precision, Extended Mount, 30mm, Black Color, Anodized Finish 05-381B
Specifications:

Type	1-Pc Base & Ring Combo
Model	AR-15
Style	1-Piece
Misc
Finish	Black Hard Coat Anodized
Material	Aluminum
Pieces	1
Gun Type	Rifle
Mount Type
Length	1.16"
Rings Included	Yes
Ring Height
Mount Height