Any foregrip i have attached to the 22 has had a little wobble. To solve the problem i just ran 2 pieces of electrical tape, one on top of the other right over the rails where you want the forgrip to sit. It jams it in place a little and is a little harder to take on and off but i figure beggers cant be choosers. I also have an AFG2 on mine and love it. I use the short utg quik release on my bushmaster and love that also. choices choices....