One of my co-workers at X-Ring, Seth, carries a G19 OWB in a custom kydex holster made by a local guy named Dave Keefer. Dave owns Revolution Equipment, 302 494 7340, he sells some of his holsters at X-Ring. Seth's holster is very much like a Crossbreed Supertuck without the leather, and worn OWB, although the holster does not have active retention (Serpa-like lever). (I use a Crossbreed for IWB carry). FWIW, I do not own one of Dave's holsters, just have seen Seth's up close, it is slim/narrow, offers good passive retention, and is a good solid build IMO. Seth speaks highly of Dave. I hope this helps. Good luck. Stay safe ~ Rob.