using propane is better than using a duster? yes? or for at least my pistol, (KJG23)

propane is more powerful than duster and with a metal slide it is mandatory. Also some forms of duster are bad for your orings. But when you lube a mag it is good to go for propane.

Just don't dust your PC with Propane. Like most things in life, it doesn't work both ways.