CLEAN : Orlando shooting prompts LGBT community to arm itself

The video tutorial covers the importance of self-training and preparation, basic firearm handling, safety, and assembly. It discusses the use of firearms for personal safety, shooting techniques, and ethics. The tutorial also includes shotgun patterning and the mechanics of firearm operation, emphasizing the importance of understanding these aspects for effective and safe use.

What does the speaker mean by saying a firearm allows people of different sizes and strengths to defend themselves?

Describe the process mentioned regarding how a gun operates when fired.