Being a beneficiary in a will does not mean you are entitled to see the will. And whilst you are entitled to receive updates on the progress of the estate’s administration and aren’t actually prevented from asking the executor(s) to see a copy – they can still refuse this request.
This is because, following the death of the testator (the person who made the will), the will of the person who has passed away remains classified as a private document that only the named executor(s) have a right to see. However, after probate is granted, the will becomes a public document, which means then you can be granted access to it.