Hk416 Remington Handguard Question

So I got this handguard, and I’m looking to put attachments on it, I understand its an M-lok style be I’m not sure whether an mlok attachment will fit because the slot is 10mm wide, anyone know what I could do or have any experience with this handguard?

I think mlok bits are 10mm standard, just dont mix up keymod bits on a mlok rail lol, thats a no brainer

The M-loc nuts insert and then rotate 90deg to lock

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