RIFLE BOLT ACTION Flashcards
MUZZLE DEVICES
flash suppressor, compensator, muzzle break
Bolt Carrier Group Key Component
Bolt, Firing Pin, Extractor, Ejector, Carrier
Essential Components Housing By the Receiver
Trigger Mechanism, Bolt Carrier Group, Barrel, Gas System
Scopes or red-dot sights that help with target acquisition and aiming at longer distances.
Optical sights
allows the shooter to manually force the bolt carrier group into battery if it has not properly locked after chambering a round. This can be useful in case of malfunctions or if the rifle fails to fully close on a round.
Forward Assist
help absorb the recoil energy from the fired round and return the bolt carrier group to its forward position to chamber the next round. This is a key part of the cycling process in automatic rifles.
Recoil Spring and Buffer System
Fixed or adjustable front and rear sights.
Iron sights
are used to aim the rifle
Sights
provides a resting point for the rifle against the shooter’s shoulder, helping stabilize the rifle and reduce recoil. _____ on automatic rifles can be fixed, collapsible, or folding. allowing for adjustments in length of pull and storage.
Stock
allows the shooter to hold and control the rifle. It provides a secure and ergonomic hand position for firing the rifle.
Pistol Grip
holds the ammunition and feeds it into the rifle’s chamber as the action cycles. In automatic rifles, the magazine is typically detachable and can hold a variety of rounds, with capacities ranging from 20 to 30 rounds, and sometimes higher.
Magazine
Fires continuously as long as the trigger is held down (in some rifles, this may be burst mode instead of full auto).
Fully automatic
Fires one round per trigger pull.
Semi-automatic
Prevents the rifle from firing
Safe
controls the firing mode of the rifle. In automatic rifles, the selector usually has multiple positions:
Selector Switch
is the part of the rifle that is pulled to initiate the firing process. In an automatic rifle, the trigger mechanism includes a selector switch to select between safe, semi-automatic, or fully automatic modes.
Trigger Mechanism
is used to manually cycle the bolt carrier group, chambering a round from the magazine into the chamber. It is also used to clear jams or malfunctions.
Charging Handle
Houses the bolt and allows it to move back and forth inside the receiver.
Carrier
Ejects the spent cartridge casing out of the rifle after extraction.
Ejector
Pulls the spent cartridge casing out of the chamber after firing.
Extractor
Strikes the primer of the cartridge to ignite the powder and fire the bullet.
Firing Pin
The part that locks into the chamber to securely hold the cartridge before firing.
Bolt
is responsible for chambering, firing, and extracting rounds
Bolt Carrier Group (BCG).
This gas is used to cycle the mechanism of the rifle (either through direct impingement or a piston-driven system) by driving the bolt carrier group backward.
Gas Block and Gas Tube.
such as a flash suppressor, compensator, or muzzle brake, is located at the end of the barrel. It reduces the flash visible when the weapon is fired, compensates for recoil, or directs gases to reduce muzzle rise during automatic fire.
Muzzle Device
guides the bullet from the chamber to the muzzle when the weapon is fired. The inside of the barrel is rifled (spiral grooves), which imparts spin to the bullet for stabilization and increased accuracy. also plays a role in dissipating heat generated by firing.
Barrel
is the main body of the rifle, Housing the essential components of the firearm such as the trigger mechanism, bolt carrier group, barrel, and gas system. It serves as the central unit of the rifle to which other parts are attached. In many automatic rifles, the receiver is divided into two parts: the upper receiver and lower receiver.
Receiver
is a type of firearm that can fire continuously as long as the trigger is held down (fully automatic mode) or in some cases can be switched between semi-automatic (one shot per trigger pull) and fully automatic modes. Understanding the parts and their functions is crucial for both using and maintaining an automatic rifle.
Automatic Rifle
