M4 Choke question

[les_garten]

I am looking for a choke to handle Hardcast slugs.

 

Is there any reason to get a rifled choke like this:

 

http://www.midwayusa.com/product/992743/carlsons-extended-rifled-choke-tube-beretta-benelli-mobil-12-gauge-black?cm_vc=ProductFinding

 

If Rifled is a good idea, what other suggestions?

 

Or best choke in general for Hardcast slugs.

 

Will any Benelli or Beretta choke tube work with a M4?

[les_garten]

Anybody have any ideas about these choke questions