I would NOT suggest getting the Integy Piggybacks! They are poop, plain and simple. I had a set on both my Savage and Revo and on both rigs, had shafts bend or outright break on the slightest of jumps or bumps. Furthermore, when I contacted Integy for warranty information and to seek the process for getting a replacement, they were terribly rude and arrogant.
Nothing personal TOPDOGG, but I'll slam my pecker in a car door before I buy ANYTHING from Integy! I hope those assholes all go out of business and end up grubbing for quarters down at the bus station!