I designed this to specifically to hold my deactivated AK-47, so I needed something strong that I could trust (as it mounted above a door!). 

You can find the deeper rear mount here:

[https://makerworld.com/en/models/2789822-deep-rugged-wall-bracket-customisable](https://makerworld.com/en/models/2789822-deep-rugged-wall-bracket-customisable)

Printed using PLA over PETG/ABS/ASA as it has a higher tensile strength. The model as been optimised to give a balance of strength without having to wait forever for it to print!

I tested it by hanging several kettlebells off it, the model shows no sign of flex at all; that being said, I can't be held responsible for any failures during use of the model; for what I need, it works well. 

I have provided the full Fusion 360 design files, so feel free to tinker with the design to suit your needs.