Replacement parts for gun boot mount

I have the Polaris gun boot and lock n ride mount, # 2878337, While bush whacking, The steel hook on the rubber bungie strap that holds the gun boot into the mount broke off along with the top inch or so of the bungie strap, and is laying somewhere along the trail. I have looked, and so far I can’t find any info on getting a replacement strap for the mount. I can probably rig up something to replace the oem strap, but was hoping I could find the exact part, if it is available as a separate part. Anyone have any info on getting a replacement strap?

A side note, I tried using the forum search function, but for some reason it doesn’t seem to be working today. No matter what I enter in the search box, it comes back no results?