GSI Firearm Cleaning & Maintenance Flashcards

Before cleaning any firearm, what is the first mandatory safety step?

Answer: Verify the firearm is unloaded and the action is open

The absolute first step before any cleaning or maintenance is to verify the firearm is completely unloaded with the action open, eliminating any risk of accidental discharge.

What is the primary purpose of a bore brush during firearm cleaning?

Answer: To scrub carbon and fouling deposits from the inside of the barrel

A bore brush is designed to scrub the rifling grooves and interior bore surface, loosening built-up carbon, copper, and lead fouling left by fired rounds.

What does a 'field strip' of a firearm typically involve?

Answer: Disassembling the firearm into its major components for routine cleaning without special tools

A field strip is a basic disassembly into major subassemblies (frame, barrel, slide/bolt, recoil spring) suitable for routine cleaning after a shooting session.

Why should a GSI instructor emphasize that students always clean firearms in a well-ventilated area?

Answer: To avoid inhaling harmful vapors from solvents and lead particles

Cleaning solvents emit harmful chemical vapors and lead residue from fired rounds can become airborne, so ventilation is critical to protect the cleaner's health.

What is the purpose of applying gun oil or lubricant after cleaning a firearm?

Answer: To reduce friction between moving parts and protect metal surfaces from corrosion

Lubricants reduce friction and wear on metal-to-metal contact points and form a protective film that prevents rust and corrosion on the firearm's surfaces.

How often should a firearm be inspected and cleaned even when it has not been fired?

Answer: Periodically (every few months) to check for corrosion, function, and lubrication

Even unfired firearms can develop corrosion from humidity, lose lubrication over time, or accumulate dust and debris, making periodic inspection and light maintenance essential.