So I have an MPA hybrid chassis for my rem700 clone. Issue I am having is the arca mount for the bipod isn't fitting on the built in rail. Does anyone have the same chassis having the same.issue with the arca mount not fitting on the built in arca rail. If not what mount are you using and what is the depth measurement on the mount for the bipod? I have the MDT grnd pod and have tried 2 different ones and neither will go on the rail