Kiesel Guitars and the Carvin Guitars Custom Shop Aries A6 and Aries A7 are bolt-neck guitars with beveled alder bodies, Kiesel Lithium humbuckers (center-position Lithium single-coil is an option), Hipshot bridge and optional vibratos, sculpted neck heels, and ferrule attachments for the neck (instead of neck plates), two-way adjustable truss rod, tung-oil neck finish.