I've used a High Noon Mr Softie for .38 J-frames, but I carried them as BUGs that needed to be concealed and didn't worry so much about the "stay open" features. A buddy recently bought a Safariland Model 18 for his 640 that he claims is comfortable for AIWB. When getting into 3 inch barrels, I'd seek holsters from the custom leather crafters such as Milt Sparks for the best comfort


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