What's the smallest commonly available model rocket motor?

Question

I've found "mini" motors of about 1/2" diameter, ~1.5" length, but I remember buying at Walmart some "micro" motors years ago - are such tiny motors still available anywhere?

I didn't have much luck with search engines finding anything, but maybe someone here knows something?

Answer 1

"A" series and yes they still make them............in some states they are illegal.

Answer 2

I believe 1/4 A was the smallest I have had the pleasure of using.  Check with your local hobby store.  Who's Hobby in Rapid City regularly carries them.  Or go online to one of the places in the links I have supplied.  Be aware that most often you cannot easily ship these items as they are flammables, so finding a local supplier is easier.  Again your local hobby dealer is the best reference.