The Harris HB2A sling stud easily fits in empty spaces of the forearm of a Prod or 1720T or even a 2400KT without any modification. You can use a Harris bipod or a clone that attaches straight to the stud or get a Picatinny rail adaptor that attaches to the stud. I have this stud on all three of my rifles mentioned above. I have a couple of Caldwell bipod that hook to the stud.
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