AEROSMITH’S JOE PERRY RETURNS TO DISCOVERY’S ACTION-PACKED HIT SERIES “SONS OF GUNS” SEPTEMBER 19 “THREE CANNONS AND A ROCK STAR” EPISODE FEATURES THE ‘RED JACKET FIREARMS’ CREW REPAIRING PERRY’S ANTIQUE, BLACK POWDER LYLE CANNON Rock legend JOE PERRY of AEROSMITH will join Will Hayden and his team