Spliting A Zip +4

Can someone show me how I can split the Zip+4 in this query, if it can be done at all?

SELECT
RTrim([CLIENT TABLE].CITY)+' , '+RTrim([CLIENT TABLE].ST)+' '+RTrim([CLIENT TABLE].ZIP) AS [ADD],
RTrim([CLIENT TABLE].FN)+' '+RTrim([CLIENT TABLE].LN) AS NAME,
[CLIENT TABLE].MEMBER, [CLIENT TABLE].PIN,
[CLIENT TABLE].A1, [CLIENT TABLE].A2,
[CLIENT TABLE].MEMBER_CASE_STATUS,
[CLIENT TABLE].RELATION_CODE INTO [CLIENT TABLE 2]
FROM [CLIENT TABLE];

Thanks