I've got a G2 and made(came up with) my own swivel concoction.... used the Pachy front grip,drilled(opened) the front hole-used a machine screw front swivel stud-no prob, as for the swivel stud off a wood screw stud and brazed it to a couple 1/4-20 nuts(for lengthening),then brazed this to the stock handgrip attaching bolt, located the proper spot on the bottom grip cap and drilled a hole large enough for the stud to stick thru/small enough that no crap gets in,reinstalled the grip bolt/tightened ,reinstalled the bottom cap and voila------sling attachments as needed. Good luck. Shane