YOU DO NOT HAVE TO BEAT IT ON WITH A HAMMER! JUST FOLLOW THE DIRECTIONS THAT COME WITH THE SIGHTS AND IT IS EASILY DONE WITHOUT THAT WORTHLESS AND EXPENSIVE SIGHT PUSHER! IF I CAN DO IT, ANYONE CAN! IF YOU PLAN TO GO INTO BUSINESS AND INSTALL SIGHTS FOR EVERYONE, THEN BUY ONE TO SAVE YOUR PRODUCTION TIME! FIRST TIME I TRIED, IT TOOK ME ABOUT TWENTY MINUTES AND I HAD MY NEW TRU-GLOW FIBER OPTIC SIGHTS ON AND WORKING GREAT!Anybody near the Tampa area that has a sight pusher I could use for a rental fee? Have 2 sets to move and don't feel like beating them on with a hammer. Just need to use it for a few mins.