Firearm Cleaning and Maintenance Flashcards

Over-lubricating a firearm with too much oil can cause which problem?

Answer: Attract dirt and debris, potentially causing malfunctions

Excess oil acts like a magnet for grit and carbon, which can accumulate in critical areas and lead to feeding or cycling failures.

Why is it important to wear eye protection when cleaning a firearm?

Answer: Solvents and debris can splash or flake off and injure eyes

Chemical solvents can splash, and bore brushing can dislodge metal fragments or fouling particles that could injure unprotected eyes.

What should you do if you discover a bulge or crack in a firearm's barrel during cleaning?

Answer: Stop using the firearm and have it inspected by a qualified gunsmith

A bulged or cracked barrel is a serious structural defect that can cause the firearm to catastrophically fail when fired, and only a gunsmith can safely evaluate it.

When using a cleaning rod, in which direction should you push the patch through the barrel for best results?

Answer: From the chamber (breech) end toward the muzzle

Pushing from the chamber toward the muzzle follows the direction of the bullet, pushes fouling out the muzzle end, and avoids bending the cleaning rod against the crown.

Which parts of a semi-automatic pistol typically require lubrication during routine cleaning?

Answer: The slide rails, barrel exterior, and trigger group contact points

Slide rails, the barrel's exterior locking surfaces, and the trigger group are the primary friction points that require light lubrication for reliable cycling.

What is the safest way to dispose of solvent-soaked cleaning patches after use?

Answer: Place them in a metal container with a lid or allow them to air dry before disposing

Solvent-soaked patches can be flammable or emit fumes; a sealed metal container or air-drying in a safe outdoor location prevents fire hazards.

How can you visually inspect a bore to confirm it is clean after cleaning?

Answer: Hold the unloaded firearm up to a light source and look through the barrel from the breech end

Looking through the bore of an unloaded firearm at a light source allows you to see the rifling and detect any remaining fouling or obstructions.