How To Build An Ar 10

How to Build an AR-10: A Comprehensive Guide

Building your own AR-10 can be a rewarding experience, allowing for customization and a deeper understanding of your firearm. However, it's crucial to approach this project with precision and a thorough understanding of all safety regulations. This guide will walk you through the process, emphasizing safety and legality.

Disclaimer: This guide provides general information only. Always consult and adhere to all local, state, and federal laws and regulations regarding firearm ownership and construction. Improper assembly can lead to malfunction and potential injury. Seek professional assistance if you're unsure about any step. Safety is paramount.

Essential Tools and Components

Before you begin, gather all necessary tools and components. This will vary slightly depending on the specific AR-10 lower receiver you choose, but generally includes:

Tools:

• Armorer's wrench: Specifically designed for AR-10 components.
• Punch set: Various sizes for driving pins.
• Torque wrench: To ensure proper tightening of screws.
• Upper and lower receiver vise blocks: Prevent damage to the receivers during assembly.
• Gunsmithing mat: Protects your workspace and components.
• Safety glasses: Essential for eye protection.
• Gloves: Protect your hands and prevent fingerprints on parts.

Components:

• Lower receiver: The foundation of your AR-10. Ensure it's compliant with all applicable laws.
• Upper receiver: Houses the barrel and bolt carrier group.
• Barrel: Choose a barrel length and twist rate appropriate for your intended use.
• Bolt carrier group (BCG): A crucial component for cycling the action. Ensure it's compatible with your barrel.
• Charging handle: Used to manually cycle the action.
• Buffer tube and spring: These manage recoil.
• Pistol grip: Provides a comfortable grip.
• Stock: Provides support for the firearm.
• Handguard: Protects the barrel and provides a mounting point for accessories.
• Gas system components: (Gas tube, gas block) These manage gas pressure to cycle the action.
• Trigger group: Includes the trigger, hammer, and disconnector.
• Magazines: Compatible with your AR-10 platform.

Step-by-Step Assembly Guide

The specific steps can vary slightly depending on your chosen components. However, the general process follows these guidelines:

1. Lower Receiver Assembly:

• Install the trigger group into the lower receiver.
• Install the pistol grip.
• Install the buffer tube and spring.
• Attach the stock to the buffer tube.

2. Upper Receiver Assembly:

• Install the barrel into the upper receiver.
• Install the gas tube and gas block (if not pre-installed).
• Install the charging handle.
• Install the bolt carrier group (BCG).

3. Joining the Upper and Lower Receivers:

• Carefully align the upper and lower receivers.
• Insert the pivot and takedown pins.

Important Considerations:

• Headspace: Improper headspace can lead to catastrophic failure. If you are not experienced in checking and setting headspace, seek professional help.
• Torque Specifications: Use a torque wrench to ensure all screws are tightened to the manufacturer's specifications.
• Lubrication: Proper lubrication is crucial for smooth operation.
• Functionality Check: After assembly, conduct a thorough function check to ensure everything works correctly. Never point a firearm at anything you don't intend to destroy.

Legal and Safety Reminders

• Always check your local, state, and federal laws regarding firearm ownership and assembly.
• Never handle firearms while under the influence of drugs or alcohol.
• Always practice safe gun handling techniques.
• Store your firearm securely and keep it out of reach of children.

Building an AR-10 is a complex process that requires skill, attention to detail, and a deep understanding of firearm safety. This guide provides a general overview; always consult with qualified gunsmiths for any assistance needed. Remember, responsible gun ownership is paramount.