If you already own a decent compresser and have a lot of stapling to do, treat yourself to a pneumatic staple gun.
I have an old Homebase electric one that’s been okay for putting short (6-8mm) staples into softwoods, but it’s gradually got less powerful and I saw a deal on a pneumatic one in my local hardware store last week.
Unsurprisingly, it’s so much better than the old electric one, I kicked myself for not buying a pneumatic one years ago.
Puts 14mm staples into hardwood all day long with a tap on the trigger.
You’ll want hearing protection to go with your safety glasses using these (especially indoors) as you get a good “pop” when it cycles.
This might be a feature of my model, but it has no safety mechanism to ensure it only operates when in contact with a hard surface as my old electric one has. This means keeping your finger alway from the trigger until you’re ready to fire and not pointing it at anything you don’t want it to fire a staple into is a Very Good Thing.
For the sake of science, I determined that it will launch staples out to a range of around 7-8 metres and will stick them into cardboard at 3-4 metres.