Monstrum Bipod Mounting Stud with M-LOK Adaptor Base Black. The adaptor is compatible with all Harris style bipod models. Attachment and detachment of bipod takes seconds and only takes up two M-LOK slots. Package comes with all necessary screws nuts and a hex wrench. No additional tooling is required. Specifications for Monstrum Bipod Mounting Stud with M-LOK Adaptor Base: Manufacturer: Monstrum Condition: New Length: 2.58 in Height: 0.98 in Color: Black Package Contents: Monstrum Bipod Mounting Stud with M-LOK Adaptor Base Monstrum MBM11: Bipod Mounting Stud with M-LOK Adaptor Base Black