As many have said, all small framed Taurus revolvers use the same grips, so any grip for the 85 will work. As some have said, count on the roll pin being a pain in the rear to remove.
Let me say, I am a big fan of the 856. After being a Taurus fan for years, I was about to give up on them after two bad experiences, and since I can buy S&W and Colt revolvers instead, when the 856 came along and saved Taurus for me. I love my 856UL, and I'm about to buy an 856 Defender as soon as a gun I have on consignment sells (or possibly earlier if it takes much longer to sell). I'm actually replacing my 3" Colt King Cobra with the 856 Defender (in that sized gun I use .38spl, I have a 2.75" S&W 66 when I want to go with magnums, and the different trigger reset and cylinder release on a Colt vs. what S&W and Taurus use can be disasterous on a defensive handgun when you are used to the Taurus and S&W system).
I'm also one of the (rare it seems) people who like the standard Taurus 856 grips. In fact, it is one of only three rubber grips I like (1st place: the old Uncle Mike boot and combat grips, 2nd place: these Taurus grips, 3rd: Hogue). They have a place for your pinky, but with it further back than usual is closer to your actual grip than the usual pinky forward grips (make a fist and see where your fingers fall), and it conceals better than other grips with a full hand grip.