Two different friends bend them without a jig. They let the stock extend off a table with a couple of 25# shot bags on the barrels. One shot bag is put on the butt and heat applied. They install a stop whatever distance from the stock they want it to move. When it moves, remove the heat and let it sit for a day. This way it's not being forced and no cracks. Just a thought for those who may want to try it.