Printed on Creality K1C with PETG-CF makes for a very strong loader since this is under a lot of spring pressure on shotgun magazines. Can be printed with with any layer height, and infill does not really affect print time so I recommend 100% with concentric infill to make it one solid piece. Supports are not needed but recommended on some of the larger overhangs depending on the quality of your printer. Using orca slicer you can enable "make overhangs printable" and then use supports with a threshold angle of 25*.
ArmscorVR_12GA_Loader.stl | 362.7KB |