Former NASCAR driver Jeremy Mayfield had enough firepower inside of his home to equip a small army ... law enforcement tells TMZ. We spoke with Captain Joel Fish of the Catawba County Sheriff's Dept. who tells us cops seized approximately 40 firearms during a search of Mayfield's North Carolina…

Former NASCAR driver Jeremy Mayfield was arrested in North Carolina last night after cops say they found methamphetamine inside his home. According to wbtv.com, cops got a warrant to search Jeremy's pad after receiving a tip about stolen goods on the property. During the search, cops say they…