Brownell Formula 44/40 Instant Gun Blue

Brownells Instant Gun Blue Reviews Summary

Pros from Reviews

  • Fast cold blue
  • Easy to use
  • Instant results
  • Works on carbon steel
  • Creates dark finish
  • Close to factory finish
  • Best dark blue on market

Cons from Reviews

  • Not as good as Van's

Notable Features

Instant
Steel-only
Deep black finish
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