22 terms



Terms in this set (...)

Action/ slide release
mechanical device that, when activated, releases the slide
long cylinder-shaped tube through which the projectile travels from the chamber
cylindrical steel part containing the firing pin and extractor, which closes the breech end of the barrel for firing
Bolt carrier
flat steel part that fits onto the action bars and on which the bolt sits
Ejection port
opening on the side or bottom of the receiver; spent casings are ejected from it and live rounds are loaded into this port
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 release the ejector as the bolt goes past it

A small extension stops the shell from going further and assist in ejecting the shell from the receiver
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
fore-end or slide
wooden or polymer grip near the magazine
front/ bead sight or post
bead or raised post on the front of the barrel used to bring the firearm into alignment for accuracy
loading port
bottom opening on the receiver that live rounds are fed into or removed from the magazine tube
magazine cap
located on the magazine tube's end and keeps the barrel in place
magazine tube
located under the barrel and holds rounds
barrel's front end
rear sight
secondary aligning device located on the receiver or barrel that aligns with the front sight bead or post to bring the shotgun into alignment for accuracy
holds the trigger group and bolt assembly
mechanical device that prevents a shooter from pulling the trigger and discharging the shotgun
shell carrier
slightly rounded steel part that blocks the loading port; catches rounds released from the magazine and raises them into alignment with the chamber
shell latches (stops)
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
part of the weapon attached to the receiver; a shooter places the stock on his or her shoulder
when firing.
stock parts
- butt—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—stock's top edge where the shooter's cheek rests
- grip—"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
- heel—top corner of the butt
- recoil pad—a butt plate, usually rubber, that reduces the effect of the shotgun's recoil or "kick"
- toe—the bottom part of the butt
when pulled, this releases the sear (a part that holds the hammer in the cocked position) and activates the firing pin
trigger guard
part of the frame that protects the trigger