Quoted: Ok answered my own question. Just removed the FSB then slid down the tube onto the reciever. No big deal
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Carry handle of flat top?
If it's a flat top, you just remove the BUIS, pull out the charging handle slightly, and slide it all the way up.
On the other hand, If it's got a fixed carry handle, then I guess your options were limited and you'd either have to do what you did, or loosen the locking ring and turn the tube until the top rail was off to one side.
If that's the case, somebody sent you in a fairly bad direction with those. Yankee hill makes a slightly longer version that has the moveable clamps like most scope mounts, and Ameetec Arms makes some mini risers pretty much exactly like the Yankee Hill, except that they are 2-piece and have the clamp as well.