I have been searching for the past 2 hours.Banshee™ IWB Holster
The Banshee IWB leather holster is extremely low profile & slim for easy concealment with adjustable cant control. For the best holsters, check it out now.www.wrightleatherworks.com
They have great holsters and offer a tuckable clip for $10.
Not the only option but one that I own. Many holsters that accept a clip for belt retention can be converted to tuckable.
All sites I've gone to don't do anything for the 3" 686 (one went with a 2.5").
I will look into this immediately.