I have a Sabre on mine. I did have to do some bending. Ill see if I can get a picture posted soon. I just basically straightened the Sabre piece and ran it from point A to B. I drilled a small hole to fasten to the stock . Pretty much self explanatory . Really a flat piece of aluminum stock would do you just as well. An Impact is a tough gun to shoot off a rest regardless. Bipod and small rear bag probably the best that can be done. There are lots of good things about the impact but it's not a bench gun for sure.