Handguards

I don't know where I can post this and the search engine didn't show much either, but I also think the topic will be useful in general.

After Jack Muir's recent injury, it occurs to me again to install handguards.  I omit that I have the thought of making them myself
And there are more and more of them on the market.
If anyone has used or is using can share their opinion.
Richie Rude on Trans Tasmania also had them installed. And here comes my questions if anyone knows perhaps what Richie has put on?
I haven't found anything similar online and these are not as big as the Nock handguards that Jessie Melamed used and I guess still uses.