You generally can’t directly filter Roblox Marketplace/Catalog items by “R6-compatible” in the public marketplace UI. Roblox’s catalog search supports keyword and other catalog parameters, but the available filters are not described as an R6/R15 compatibility filter.
What you can do
- Search for the item name, then check whether it’s a bundle or avatar item that is likely to work with R6.
- Use a game or avatar editor that previews the item on an R6 rig before you buy or equip it, since layered clothing is not normally compatible with R6 avatars.
- For custom in-game systems, creators can build their own filtering logic around avatar assets, but that’s different from the public Marketplace UI.
Practical workaround
A common workaround is to look for items that are clearly classic clothing or R6-specific bundle/body parts , since layered clothing is the main category that tends to break compatibility with R6.
Bottom line
So the short answer is: there isn’t a standard built-in R6 filter on the Roblox Marketplace , and the safest approach is to preview items on an R6 avatar or rely on item type and community confirmation.