The best replacement for chokes is flush.

The best alternatives to chokes are rated as following:
★★★★★  flush
★★★★  patternmaster
★★★★  joint locks
★★  optima chokes
★★  briley
★★  improved cylinder
★★  invector plus chokes
★  pure gold
  kicks chokes
  comp n choke
  non ported chokes
  wellhead chokes
  briley chokes
  no chokes

Your alternative for chokes is not listed? Suggest!
Speaking about chokes, one probably shouldn't forget about buckshot.

Other search terms related to chokes and their ratings are:
★★★★★ buckshot
★★★★ beretta
★★★ steel shot
★ shotgun
You have in mind a companion for chokes and it is not yet here? Propose!



Google Trends

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chokes
flush
patternmaster