Lego mapping includes design IDs 88428 for Pearl Dark Gray version, 55529 and 86022 for Metallic Silver version.
Click on a colored part below to see the Sets and MOCs that use part 48729b Bar 1L with Clip [Cut Edges and One Side Hole] in that color. You can find an overview of all LEGO Colors here.
If a color is missing, it probably needs to be added to a Set Inventory.
This part has been used by MOCs in the following colors but not officially released.