I have a flat top receiver and want to mount my XPS2 sight (no built in riser), G33 Magnifier (optional 7mm riser) and a BUIS all with lower 1/3 co-witness since I have a fixed front sight.

After an hour + of searching online and here I have not found a solution. Even LaRue said they wished they made the LT110 without that extra bit of raised rail because they are asked this question a lot.

Any options? Do I need to sell the XPS2 for an EXPS sight?

Thank you!

Get the Unity riser. I have one for my EoTech Blk and it’s awesome.

Sell the XPS and get an EXPS.

OP wants to use BUIS. Will not work with the Unity Tactical riser and FTC combo.

Unity Tactical FTC mount for G33 only works with lower 1/3 height optics on the FAST riser. The XPS will be too low to get a proper image.