The Masterpiece Arms RAT Base is an excellent solution to attach your bipod to your MPA chassis. Based off the same Rapid Adjustment Technology as the 1.5″ dovetail on the chassis, this adapter allows you to freely adjust your bipod up and down the length of the chassis forend. You can also use the RAT Base to connect to the MPA Spigot Mount to extend your bipod further.
The installation of the Masterpiece Arms RAT Base is a breeze. You simply un-bolt your bipod’s existing adapter, if present, and use the supplied screws to attach the RAT base. Afterwards just slide it onto your MPA chassis and go shoot! The RAT Base is available to fit both Harris or Atlas bipods.