What? How would you use TWO levers in the SAME place?! To answer your illogical question, “no”. Buy one of the other! This is the best choice hands down. Takes up way Jess space and will fit most all uppers and lowers since this lever unlike the bad lever is built to have a little clearance so with most all uppers and lowers it’ll clear since it’s designed to. Just by looking at a picture you can’t see this so looks like it wouldn’t fit a gun with the OEM style bolt catch notch that some uppers have but will in most cases.