Next time you go in there, see if you can rack the slide.
If the trigger moves to the appropriate spot, yet set.
If not, ask about its history...point out that the trigger isn't setting right for that particular model.
That's usually a "Buying Question", so be prepared if they offer to knock a bit off the price.
If they do, buy it once you've knocked 'em down as far as it'll go.

Make sure you know the cost of a whole new trigger assembly & whatnot,
so you'll know if they're knocking off enough.

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Marlin & Calico Specialist