it is, that's why I said R2's lower really won't work. And like I said I'm pretty sure I'm going to get a MI lower because I can just go there, do the paper work and get it, no muss no fuss. I was just curious for there was any major difference between the too, but judging by replies it's just preference. btw this is for the arak-21 build I was talking about in the x39 section