Chapter 3: Firearms Instructor
Certification EXAM QUESTIONS AND
VERIFIED ANSWERS LATEST UPDATE THIS
YEAR
Backstrap - ANSWER-Portion of the grip that is placed in the palm of the shooting hand.
Barrel - ANSWER-1. Provides a path for the fired bullet; long cylinder-shaped tube
through
which the projectile travels from the chamber
2. its chamber holds the cartridge
Center Pin - ANSWER-The spring-loaded part that holds
the cylinder closed.
Crane - ANSWER-Attaches the cylinder to the frame so the cylinder can swing in and
out of the
frame opening.
Cylinder - ANSWER-Houses the extractor rod and contains the chambers that hold the
cartridges.
Cylinder Release Latch - ANSWER-disengages the cylinder from the
frame
Cylinder Stop - ANSWER-locks the cylinder
Extractor - ANSWER-1. star-shaped device attached to the extractor rod that fits inside
the cylinder that the rounds rest on (internal part)
2. metal hook-shaped part mounted on the bolt; the hook engages the rim of the
cartridge so that when the action is brought to the rear, the extractor removes the shell
from the chamber.
Extractor Rod - ANSWER-when depressed, it causes the extractor to push the cartridge
from the cylinder
Frame - ANSWER-internal structure that holds the parts of the revolver and provides a
way of gripping the firearm
,Front Sight - ANSWER-located on the end of the barrel near the muzzle; it is designed
for the swift location of the target and for bringing the firearm into alignment for
accuracy.
Grip - ANSWER-1. made of wood, plastic, or rubber; designed to allow the shooter to
grip the firearm easily for control
2. "small of the stock," just behind the receiver; the shooter uses the grip and his or her
shooting hand for control when firing or carrying it
Hammer - ANSWER-when the trigger is pulled, this part falls forward to activate the
primer
Hammer Nose - ANSWER-pin or firing pin—part of the hammer or
frame that protrudes through the frame and strikes the primer (internal part)
Hammer Spur - ANSWER-part of the hammer used for cocking the weapon to single-
action mode
Hand - ANSWER-turns the cylinder as the gun is cocked, thus aligning a cartridge with
the hammer or firing pin (internal part)
Rear Sight - ANSWER-located on the rear of the frame; it can be adjustable or fixed
Top Strap - ANSWER-part of the frame that houses the rear sight, positioned over
cylinder
Trigger - ANSWER-activates the revolver's operation in both single and double action;
activates the pistol's operation
Trigger Guard - ANSWER-part of the frame that protects the trigger
Accessory Rail - ANSWER-provides space for lighting and sighting devices
Frame/Receiver - ANSWER-holds the internal parts, as well as the slide assembly, and
provides a way to grip the pistol
Front Strap - ANSWER-portion of the grip that allows the fingers of the shooting hand to
rest
Grip Panel - ANSWER-made of polymer designed to allow the shooter to easily grip and
control the weapon
Magazine Catch - ANSWER-releases the magazine from the frame
(magazine well)
,Magazine Floor Plate - ANSWER-base of the magazine
Muzzle Barrel - ANSWER-provides a path for the fired bullet and is
chambered to hold the cartridge
Slide - ANSWER-houses the firing pin, safety, drop safety, sights, and extractor
Slide Cover Plate - ANSWER-allows access of the firing pin assembly
Slide Lock - ANSWER-device that allows quick and simple field stripping of the pistol
Slide Stop Lever - ANSWER-device that locks the slide in the open position
Thumb Rest - ANSWER-place for the thumb to rest while gripping the pistol
Trigger Safety - ANSWER-allows the trigger to move when pressed
5 Main Parts of a Magazine - ANSWER-1. Follower
2. Spring
3. Magazine Insert
4. Floor Plate
5. Magazine Tube
Action/Slide Release - ANSWER-mechanical device that, when activated, releases the
slide
Bolt - ANSWER-1. cylindrical steel part containing the
firing pin and extractor, which closes the
breech end of the barrel for firing
2. contains the firing pin, spring, and extractor (internal part)
Bolt Carrier - ANSWER-flat steel part that fits onto the
action bars and on which the bolt sits
Ejection Port - ANSWER-opening on the side or bottom of the receiver; spent casings
are ejected from it and live rounds are loaded into this port
Ejector - ANSWER-1. piece of spring steel mounted on the
inside left of the receiver; when the action pulls a shell to the rear, it compresses and
then releases the ejector as the bolt goes past it. A small extension stops the shell from
going further and assists in ejecting the shell from the receiver.
2. expels the shell from the ejection port
(internal part of the bolt)
Fore-end / Slide - ANSWER-wooden or polymer grip near the magazine
, Front/Bead Sight or Post - ANSWER-bead or raised post on the front of the barrel used
to bring the firearm into
alignment for accuracy
Loading Port - ANSWER-bottom opening on the receiver that live rounds are fed into or
removed from the
magazine tube
Magazine Cap - ANSWER-located on the magazine tube's end and keeps the barrel in
place
Magazine Tube - ANSWER-located under the barrel and holds rounds
Muzzle - ANSWER-barrel's front end
Receiver - ANSWER-holds the trigger group and bolt assembly
Safety - ANSWER-1. mechanical device that prevents a shooter from pulling the trigger
and discharging the shotgun
2. blocks the hammer from striking the firing pin; prevents firing (located on the left side
of the weapon)
Shell Carrier - ANSWER-slightly rounded steel part that blocks the loading port; catches
rounds released from the magazine tube and raises them into alignment with the
chamber
Shell Latches (stops) - ANSWER-two pieces of steel mounted on each side of the inside
of the receiver at the
magazine's rear; they help hold the cartridges in the magazine and release them one at
a time when the
action operates. They are also used to manually unload the shotgun.
Stock - ANSWER-1. part of the weapon attached to the receiver; a shooter places the
stock on his or her shoulder when firing.
2. part that enables shoulder support during firing
Butt - ANSWER-rear area of the stock that the shooter mounts against the shoulder for
firing; normally covered
with a metal or plastic butt plate or a recoil pad
Comb - ANSWER-stock's top edge where the shooter's cheek rests
Shooting Hand - ANSWER-The hand used to shoot the firearm.
Recoil Pad - ANSWER-a butt plate, usually rubber, that reduces the effect of the
shotgun's recoil or "kick"