This piece from Area 419 will allow you to mount your bipod to an Area 419 Arca clamp with pushing the bipod out 1.25" further forward.

For Harris:

Allows use of the Area 419 Arcalock Clamp with Barricade stop to your Harris bipod with use of their Harris Bipod Adapter
Also comes in the complete Area 419 Harris Bipod Conversion Kit
Extends bipod out extra 1.25″ for better stability

For Atlas:

Works on All Atlas Bipods with removable clamp
Adapts Atlas 5H to the Area 419 ARCA clamp (or other brands) with no other parts necessary.
Extends any Atlas bipod out extra 1.25″ for better stability

For any other Bipod:

Any other ARMS17-S mounted bipod can attach to this to extend out extra 1.25″
Gives additional clearance for bipods that do no work with an ARCA clamp due to wider design

Does not include bipod, Harris Adapter, barricade stop or clamp.

ARCA Rail Gear / ARCA extension