Randy a gunsmith or even most sporting good store's should have something to fill the sight taps on your ML. If you bought the scope from a store try them first, they generally don't charge for such small items if you purchased the scope from them...either way should be able to find something locally.

I am not sure if you live in Winnipeg or near it, but SIR or Wholesale should be able to hook you up. Just make sure you take the gun with you as their are different sizes, colours, etc.

Best of luck!