
The RAT (Rapid Adjustment Technology) Dovetail Adapter Plate by MPA allows you to attach a variety of accessories to the 1.5" Dovetail Cut on the BA Chassis system and attaches to the Spigot Mount.
Tis allows the shooter to run the RAT System and all the accessories on both the chassis body and the spigot mount. This will also be needed to run the Magentospeed Speed Adapter on the MPA Chassis.
Simply remove the existing Picatinny rail from your Spigot Mount and attach the RAT Dovetail Adapter Plate.