that has a stapler that fires as fast as the M16. The first day or two worked great. Then he started firing 5-6 staples at a time, as if the trigger was stuck. I thought maybe it was overheating but it felt cold. The next day it worked again. About twenty shots fired. The last two days nothing but rate of fire. Just in case, I inserted a strip of staples and pulled the trigger. I blew off the entire strip in about 10 seconds. When I try to staple the carpet, it fires about 6 staples at a time, and I consciously hardly do that, I mean hardly by pulling the trigger. Should have just shelled out the money for DuoFast.