由 google How to Build an AR-15: A Comprehensive Guide
Building your own AR-15 rifle can be a rewarding and cost-effective endeavor. Whether you’re a DIY enthusiast or a firearms hobbyist, this guide will walk you through the process step by step. From selecting the right components to assembling the rifle, we’ll cover everything you need to know.
Choosing the Right Parts
Before you start building your AR-15, you need to gather all the necessary components. Here’s a list of essential parts you’ll need:
| Part | Description |
|---|---|
| Upper Receiver | The upper receiver is the main part of the rifle that houses the barrel, bolt carrier group, and magazine. |
| Lower Receiver | The lower receiver is the part that houses the trigger group and magazine release. |
| Barrel | The barrel is the tube that the bullet travels through when fired. |
| Bolt Carrier Group | The bolt carrier group is responsible for cycling the action of the rifle, including feeding, extracting, and ejection of the rounds. |
| Handguard | The handguard is the tube that covers the barrel and provides a place to hold the rifle. |
| Stock | The stock is the part that you hold against your shoulder to steady the rifle. |
| Trigger Group | The trigger group includes the trigger, hammer, and sear, which are responsible for firing the rifle. |
| Magazine | The magazine holds the rounds of ammunition and feeds them into the chamber when the rifle is fired. |
When selecting the parts, consider the following factors:
- Caliber: Choose the caliber that suits your needs, such as .223 Remington, 5.56 NATO, or .308 Winchester.
- Barrel Length: Longer barrels offer better accuracy and velocity, but they can be heavier and more difficult to maneuver.
- Handguard Material: Aluminum handguards are lightweight and durable, while polymer handguards are lightweight and offer more flexibility.
- Stock Material: Aluminum stocks are lightweight and durable, while synthetic stocks are lightweight and offer more comfort.
Assembling the Upper Receiver
Once you have all the necessary parts, it’s time to start assembling the upper receiver. Here’s a step-by-step guide:
- Install the Barrel: Place the barrel into the upper receiver and secure it with the barrel nut and wrench.
- Install the Gas Block: Place the gas block onto the barrel and secure it with the gas block screw.
- Install the Bolt Carrier Group: Place the bolt carrier group into the upper receiver and secure it with the bolt carrier key.
- Install the Charging Handle: Place the charging handle into the upper receiver and secure it with the charging handle pin.
- Install the Forward Assist: Place the forward assist into the upper receiver and secure it with the forward assist pin.
- Install the Ejection Port Cover: Place the ejection port cover into the upper receiver and secure it with the ejection port cover pin.
Assembling the Lower Receiver
Now that the upper receiver is assembled, it’s time to move on to the lower receiver. Here’s how to do it:
- Install the Trigger Group: Place the trigger group into the lower receiver and secure it with the trigger pin.
- Install the Magazine Release: Place the magazine release into the lower receiver and secure it with the magazine release pin.
- Install the Fire Control Group: Place the fire