As an avid hoarder of little boxes i wanted to make this one more useful.

This is the Smaller version of the insert.

• Due to China being China the cases/boxes are different sizes for the same product.
• This version is for the Smaller version be sure to check your measurements. 
• URL for taller version: https://makerworld.com/en/models/476399#profileId-387363 
• Picture for reference.   
• Measured without top. Small: (59mmTall)        Tall: (75mm Tall)
• 

Added an insert to my Holosun HS407c box.

• holds 6 extra RMR plates/covers. 
• The first 4 slots hold stock Glock adapter plates perfectly.
• The last 2 holders are larger to accommodates off sized aftermarket plates.
• Includes a tool holder.
• Place for the mounting screws.
• Nice curvature to fat finger gorilla grip the screws out.
• Extra large compartment for activities.

Mine was printed in PLA + but do you boo boo

If you liked it, or have any input on improvement I'm all for it.

Thanks for looking