FX Impact M3 butt stock / bag rider / magazine protector / shooting stick holder

So I want to shoot off a shooting stick but the rear "Y" from the shooting stick would press up against the magazine, damaging it. this butt stock is also functional as a beanbag rider of course. Naturally I retained the adjust-ability from the original stock.

I drew this butt-stock specifically to “catch” the Y from the shooting stick. As seen on the last 2 pictures (that were still prototyping versions, but you can see how it interacts with the shooting stick).
 

Printer settings:

• I printed this part in PETG
• Printed standing up 
• 0,15mm lair height
• 0.4mm nozzle
• 30% infill 
• 3 perrimiter layers
• I used organic supports