Here is a 20g chamber flag meant to tie into the same theme as my other 12g chamber flag. The font is based on the best portable power tool company around (my opinion). The photo shows it inside of a SXS shotgun, but it does fit into the action of a 20g Mossberg pump as well. I may be able to get a photo of that soon.
These are printed in black because it is simply what was in my machine at the time. Bright colors work the best, but another option is to tie paracord into the “keyring” opening designed into the flag.
I hope you enjoy!