You will want to talk to them directly. From the Army's website, I didn't see that particular location, but I did find one nearby with this contact information:

CHAMBERSBURG 3055 BLACK GAP RD., CHAMBERSBURG MALL SUITE 822 CHAMBERSBURG, PA 17202 717-264-2812

There are list of basic requirements on the Army's website as well (see the section "General Enlistment Qualifications"): http://www.goarmy.com/about/serving-in-the-army/types-of-soldiers/enlisted-soldier.html