Staple gun. Self powered with forward trigger.
Needed a T50 stapler to nail down some astro turf on a doggy handicap ramp. This US made tool works great at putting down staples..... at least for a few minutes anyway. Then it stopped "cocking". No jamming, just wouldn't re-lock the trigger for the next staple. It seems as though they are hit or miss badly. Like 1 out of 10 are a dud according to reviews. Most loved them. Enough said they stop working to cause me to think there's a design or build issue with the newer version. I got the dud.
I finished the job with my 1980's Arrow T50
Much more recoil than the Powershot and requires more effort to push the trigger but it's reliable as sunshine.
I took back the Powershot and traded for...
The Craftsman push fire.
It's a plastic body number with more recoil than the Arrow brand but it keeps firing staple after staple. I shot a reel of staples with it and no issues. And the mechanism to fill it up is a super easy to use set up.
The front fire staple gun is way easier to use. The little window lets you know you have some staples left and the arrow on the side makes for precision stapling as well. The Arrow one is way more user friendly than the Craftsman but hey, if it doesn't staple who cares how easy it is to handle, right?