Duplin Bipod for FTR

[girish]

I have a Duplin bipod for FTR, but have a problem with the cant not clamping tight. Received no response from Duplin Rifles. Not sure if they are even still in business.

Anyone solved a similar cant problem with these bipods? I have been wondering if there is some kind of grabby nylon washer that will provide sufficient friction against the plates to prevent rotation. All I have found so far are synthetic lock washers meant to stop the bolt from rotating, not the structure the bolt goes through.

 

[Acyr]

I had good results by roughing up the contact surfaces. Remove the black hard coating with a dremel and stone bit.

 

[XTR]

Put a star lock washer in the stack.