GLENWOOD SPRINGS — Colorado residents are exercising their Second Amendment rights in record numbers. Gun sales surged to a new high before President Barack Obama took office in January 2009. One year later, gun sales surpassed the record set in 2008, despite the recession's strong grip. According to data from the Instacheck Unit of CBI, the office that handles statewide background check requests for any firearm transaction, the office approved 196,980 total background checks in 2008. In 2009, CBI approved 202,613, about half of which were handgun sales