No, it is a spring gun.
You can oil the catch by taking the gun slide apart and oil the catch and the metal part on the slide.
The least costly airsoft guns are spring operated. You either pull back on the slide of a pistol or the cocking lever of a rifle like on the dual power (battery or spring) HK MP5. A compact-sized pistol starts at $10 at on-line retailers and they go up from there.
One in which the slide does not move when fired.
There might be a very high end airsoft pistol which a factory sight can be fitted to, but I'm a bit doubtful about it. With most of your airsoft pistols, the sights are part of the single piece moulding which the slide is made from - they're not like real factory sights, which are separate units that have to be tapped into place after manufacture.
bang it on the ground
you put the magazine into the butt of the pistol, then to charge the pistol pull the slide to the rear and let go or push down on the slide catch if there are no more rounds in the magazine.
Pry off the slide. Undo the screw on the safety and remove. There may or may not be a pin but if there is, pop it out. I dont really remember what else but it should be pretty straight forward from here. Happy airsofting !
A gunsmith can help you.
The steel used.
Check the slide
It is possible.
On the right side of the gun, above the trigger is a button, push that in and swing the slide release on the left side. Remove the button and spring, then pull out the slide release. To remove the barrel assembly simply push forward and pull off. Reverse steps to replace it. Dont try taking apart the grip. Those plates hold the mag release, safety, and trigger action in place. You run a big risk of losing the mag release spring if you take this section apart.