Mark 4 tactical bases are the only bases to accommodate both the oversized 8-40 screw and a 6-48 screw, providing compatibility with the widest range of modern tactical firearms.Both styles of screws are included with each mark 4 base.
Type: 2-Piece Base
Model: Mark 4
Style: 2 Piece
Finish: Matte Black
Material: Steel
Pieces: 2
Gun Type: Rifle
Mount Type: Screws
Rings Included: No
Type: 2-Piece Base
Model: Mark 4
Style: 2 Piece
Finish: Matte Black
Material: Steel
Pieces: 2
Gun Type: Rifle
Mount Type: Screws
Rings Included: No
