For the newer Texan LSS you need this adapter.
https://donnyfl.com/products/texan-lss-adapter-a65?_pos=2&_sid=cf952efc8&_ss=r
I recommend the Emperor .45/.50 #S5B/
For additional suppression you can always add the Emperor/Ronin extender #S5C.
I you have an older version of the LSS please reach out for additional option.