full disclosure, I don't own a sar 9 or a parts kit, i haven't printed this model yet. the internal geometry is based on @ArmThyRightHand https://odysee.com/@ArmThyRightHand:a/Sar9:0
if you want to test it let me know how it turns out. ill update it when i get a chance.
ill eventually make a model that uses p320 mags and glock 17 magazines.
update: based on feedback i modified the geometry
g19 frame with PSA rails
G19 gen 3 style RXM frame
g19 15 round magazine