Firearms - Semiautomatic Rifle/Carbine

Question 1

Provides a path for the fired bullet; its chamber holds the cartridge.

Answer 1

barrel

Question 2

Contains the firing pin, spring, and extractor (internal part).

Answer 2

bolt

Question 3

Enables the bolt to return after firing (internal part).

Answer 3

buffer/buffer spring

Question 4

The end of the stock.

Answer 4

butt

Question 5

Supports the case at rest and during firing (internal part).

Answer 5

chamber

Question 6

Enables withdrawal of the bolt to chamber a round.

Answer 6

charging handle

Question 7

Opening that permits the shell to exit the weapon (internal part)

Answer 7

ejection port

Question 8

Expels the shell from the ejection port (internal part of the bolt).

Answer 8

ejector

Question 9

Grips and pulls the shell from the chamber.

Answer 9

extractor

Question 10

Used to support the rifle with the support hand; acts as a heat shield from the barrel.

Answer 10

forestock/hand guard

Question 11

A button assuring that the bolt is locked.

Answer 11

forward assist

Question 12

Contains the magazine release, magazine well, trigger housing, and trigger components

Answer 12

lower receiver group

Question 13

Contains ammunition ready to be chambered.

Answer 13

magazine

Question 14

Permits removal of the magazine from the firearm.

Answer 14

magazine release

Question 15

Housing for the magazine (internal)

Answer 15

magazine well

Question 16

Attachment to the barrel’s forward end that reduces the flash as burning powder escapes when the bullet exits the barrel.

Answer 16

muzzle flash suppressor

Question 17

Blocks the hammer from striking the firing pin; prevents firing (located on the left side of the weapon).

Answer 17

safety

Question 18

Used to align the firearm to the bullet’s point of impact.

Answer 18

sights (front and rear)

Question 19

Metal loops affixed to the rifle/carbine to which a carrying strap attaches.

Answer 19

sling swivels

Question 20

Part that enables shoulder support during firing.

Answer 20

stock

Question 21

Enables separation of the upper receiver from the lower receiver and allows fieldstripping and cleaning.

Answer 21

take down pins

Question 22

Enables the firearm to be fired when pulled.

Answer 22

trigger

Question 23

Section consisting of the trigger, trigger springs, safety, and all firing mechanism parts.

Answer 23

trigger group

Question 24

Part of the frame that protects the trigger.

Answer 24

trigger guard

Question 25

Houses the bolt assembly group.

Answer 25

upper receiver group

Question 26

Seating a loaded magazine into the magazine well.

Answer 26

loading

Question 27

Moving the round from the magazine to the chamber by releasing the bolt, picking up the round from the magazine and seating the round into the chamber.

Answer 27

feeding/chambering

Question 28

The face of the bolt locks with the breech end of the barrel.

Answer 28

locking

Question 29

Ignition of the primer and firing the cartridge.

Answer 29

firing

Question 30

Unseating the bolt from the breech end of the barrel.

Answer 30

unlocking

Question 31

Pulling the spent cartridge case from the chamber.

Answer 31

extracting

Question 32

Pushing the spent cartridge case out of the ejection port.

Answer 32

ejecting

Question 33

Returning the firing mechanism to the fire position.

Answer 33

cocking