I use duck tape if it is anything heavy. I tape the box edges and then around the box in all 3 directions. I rub down every edge of tge taoe.
For the last gun I shipped, I custom cut foam I had from something we bought to fit it and the inner box I shipped it in. Then wrapped that all in bubble wrap in an exterior box that got taped to Hell and back.
Had USPS tear open a medium flat rate box coming to me a few years ago. Stuck a big clear sheet to it with a oopps message. Cost me 2 mp5 trigger packs. Seller to blame some because he did not add any packing to it.
Last edited by Ronald_55; 12/27/23.