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AR-15 Diagram: A Comprehensive Guide
The AR-15, a firearm that has gained immense popularity among shooters and enthusiasts alike, is renowned for its modularity and reliability. If you’re looking to delve deeper into the intricacies of this iconic firearm, an AR-15 diagram is an invaluable resource. In this article, we’ll explore the various components of the AR-15, their functions, and how they come together to create a formidable firearm.
Receiver
The receiver is the heart of the AR-15, serving as the central framework that holds all the firearm’s components together. Made from either aluminum or steel, the receiver is responsible for housing the bolt carrier group, magazine, and trigger assembly. It also features the ejection port, which allows spent casings to be ejected from the firearm.
Bolt Carrier Group
The bolt carrier group is a critical component of the AR-15, responsible for cycling the firearm’s action. It consists of the bolt, carrier, gas key, and firing pin. When the trigger is pulled, the bolt carrier group moves forward, extracting the spent casing, chambering a new round, and then retracting to the rear, preparing for the next shot.
Gas System
The gas system is an essential part of the AR-15, responsible for controlling the amount of gas that is bled into the action. This gas is used to cycle the bolt carrier group, ensuring smooth operation. The gas system consists of the gas block, gas tube, and gas key. The gas block is attached to the barrel, and the gas tube runs from the barrel to the bolt carrier group.
Barrel
The barrel is the longest and most critical component of the AR-15, responsible for directing the bullet down the barrel and propelling it at high velocity. The barrel is typically made from stainless steel or aluminum and features rifling, which imparts spin to the bullet, improving accuracy and stability. The barrel also determines the firearm’s caliber and effective range.
Handguard
The handguard is the component that covers the barrel and provides a grip for the shooter. It is typically made from aluminum, polymer, or carbon fiber and can be customized with various attachments, such as Picatinny rails for optics and accessories. The handguard also helps dissipate heat and protect the shooter’s hands from the barrel’s heat.
Stock
The stock is the component that allows the shooter to hold and aim the firearm. It can be adjusted for length of pull and cheek weld, providing a comfortable and consistent shooting experience. Stocks are available in various materials, such as wood, polymer, and composite, and can be customized with various features, such as cheek risers and recoil pads.
Trigger Assembly
The trigger assembly is responsible for initiating the firearm’s action when the trigger is pulled. It consists of the trigger, hammer, sear, and return spring. The trigger pull weight can be adjusted to suit the shooter’s preferences and skill level.
Magazine
The magazine is the component that holds the firearm’s ammunition. It is inserted into the magazine well, which is located on the bottom of the receiver. Magazines come in various capacities and materials, such as aluminum, steel, and polymer, and can be customized with various features, such as follower extensions and magazine loaders.
Table: AR-15 Diagram Components
| Component | Description |
|---|---|
| Receiver | The central framework that holds all the firearm’s components together. |
| Bolt Carrier Group | Responsible for cycling the firearm’s action. |
| Gas System | Controls the amount of gas that is bled into the action. |
| Barrel | Directs the bullet down the barrel and propels it at high velocity. |
| Handguard | Covers the barrel and provides a grip for the shooter. |
| Stock | Allows the shooter to hold and aim the firearm. |
| Trigger Assembly |
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