Hi, the minimag lens is 22.8mm
Just received mine from flashlightlens.com and fits great
The lens is coated and at $7. Pick either longbow or Arh4 doesn't matter /ubbthreads/images/graemlins/wink.gif
The only issue is that the lens bezel doesn't screw all the way down due to the extra thickness of the UCL /ubbthreads/images/graemlins/frown.gif
USA to UK in 5 days /ubbthreads/images/graemlins/buttrock.gif