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Installing Full Auto Sear AR: A Comprehensive Guide
Are you looking to upgrade your firearm with a full auto sear AR? If so, you’ve come to the right place. Installing a full auto sear on an AR-15 is a significant modification that can transform your weapon into a fully automatic firearm. However, it’s important to note that this process is highly regulated and requires a thorough understanding of the laws and safety procedures involved. In this guide, we’ll walk you through the process of installing a full auto sear AR, covering the necessary components, legal considerations, and safety precautions.
Understanding the Full Auto Sear
The full auto sear is a mechanical device that converts a semi-automatic firearm into a fully automatic weapon. It works by continuously cycling the firearm’s action, allowing for rapid, automatic fire. While this modification can be highly rewarding, it also comes with a host of legal and safety implications.
Legal Considerations
Before you begin the installation process, it’s crucial to understand the legal aspects of owning and modifying a firearm with a full auto sear. In the United States, the sale, possession, and modification of firearms with full auto sears are heavily regulated under the National Firearms Act (NFA). Here are some key points to consider:
| Legal Aspect | Description |
|---|---|
| NFA Registration | Full auto sears must be registered with the ATF and subject to a $200 tax. |
| Transfer Restrictions | Transfers of full auto sears require a background check and approval from the ATF. |
| Ownership Requirements | Only individuals with a valid ATF license can possess full auto sears. |
It’s important to consult with a legal professional to ensure compliance with all local, state, and federal laws before proceeding with the installation.
Required Components
Installing a full auto sear on an AR-15 requires several components, including the following:
- Full Auto Sear: The heart of the modification, the full auto sear is responsible for converting the firearm into a fully automatic weapon.
- Fire Control Group: This group of parts includes the hammer, trigger, and sear, which work together to cycle the firearm’s action.
- Buffer Tube: The buffer tube houses the buffer, which absorbs the recoil forces generated by the firearm.
- Buffer Spring: The buffer spring provides the necessary force to return the buffer to its original position after each shot.
- Buffer: The buffer is a metal rod that connects the bolt carrier group to the buffer tube, absorbing recoil.
Installation Process
Installing a full auto sear on an AR-15 is a complex process that requires a certain level of mechanical skill and knowledge. Here’s a general outline of the steps involved:
- Disassemble the firearm, removing the magazine, bolt carrier group, and other components.
- Install the full auto sear into the fire control group, ensuring it is properly aligned.
- Install the fire control group into the lower receiver, making sure the trigger and hammer are functioning correctly.
- Reassemble the firearm, replacing the magazine, bolt carrier group, and other components.
- Test the firearm to ensure it is functioning correctly and safely.
It’s important to note that this is a simplified outline, and the actual installation process may vary depending on the specific components and firearm model. For detailed instructions, consult the manufacturer’s manual or seek guidance from an experienced firearms technician.
Safety Precautions
Installing a full auto sear on an AR-15 is a potentially dangerous task that requires strict adherence to safety precautions. Here are some key safety tips to keep in mind:
- Always keep the firearm pointed in a safe direction.
- Never put your finger on the trigger until you are ready to shoot.
- Use a secure vise to hold the firearm during disassembly and reassembly.
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