This is a buttstock extension that can be added as a spacer between the buttstock of the KRG Chassis and its KRG Recoil Rad, to adjust the length of pull.
According to KRG website, all KRG chassis use the same recoil pad, but keep in mind - I verified fitment with KRG Bravo Rimfire version only.
Printed with PETG 0.2mm layer height, 4 vertical perimeters and 15% infill to speed up the print. Make sure that the outer perimeter seam is located at the bottom edge of the spacer.
If you use Prusa Slicer - orient the spacer with the bottom side facing back of the plate, then select Seam position: Rear in the print settings.
This gives plenty enough of mechanical strength for a rimfire rifle. For a centerfire rifle consider printing with higher infill and more perimeters.
The author marked this model as their own original creation.