Remington choke tubes installed on my H&R Topper?

[Rampant_Colt]

I love my H&R Topper shotgun, but feel limited with having just a modified choke. Would it be possible to have Rem choke tubes installed [to share commonality with my 870] - ?

Any places like Briley's or Carlson's that would perform such a conversion?

I would consider using a big, ugly Marble's, or Poly-Choke as well

Any other suggestions?