ALL K FRAMES cannot be lumped together. I have found that it makes
a difference whether or not the K Frame has an adjustable rear sight or
fixed rear sight. A K Frame with adjustable rear sight might fit very well
in a holster but put a K Frame with a fixed rear sight in and it will have
some wobble or wiggle room. On the other hand a holster that fits
the fixed rear sight K Frame well (Heiser 457 for example) will usually
be too tight a fit for the adjustable rear sight like on a model 15/67,
19, etc....

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In Omnia Paratus