Im getting two different conjugations of なさる masu form from different sites

some say なさります some say なさいます

I know that the conjugation rule for godan verbs ending in る is to convert the
る into り and add ます

I also know that なさる is the honorific form of する which is an irregular verb,
so I am truly stumped as to what the proper spelling would be.
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2016-04-02T07:03:07.907
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2016-04-02T07:03:07.907
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question
verbs conjugations politeness
What is the correct なさる masu form?