Replacing the handguard on your DPMS LR-308 can significantly enhance comfort, ergonomics, and even performance. Whether you're upgrading for aesthetics, improved heat dissipation, or adding accessory rails, this guide will walk you through the process. We'll cover various handguard types, tools you'll need, and step-by-step instructions to ensure a smooth and successful replacement.
Understanding DPMS LR-308 Handguards
Before diving into the replacement process, it's crucial to understand the different types of handguards available for the DPMS LR-308. The original handguards are often basic and may lack the features modern shooters desire. Upgrades often include:
- Free-floating handguards: These handguards don't contact the barrel, minimizing vibrations and improving accuracy. They typically require a barrel nut system.
- Drop-in handguards: These are simpler to install, clamping directly onto the existing barrel nut. They offer less precision but are easier for beginners.
- Keymod and M-LOK handguards: These systems provide modular attachment points for accessories like lights, lasers, and grips. They're popular choices for customization.
Choosing the right handguard depends on your budget, skill level, and desired features. Research different brands and models to find the perfect fit for your needs and shooting style. Consider factors like length, weight, material (aluminum is common), and rail system compatibility.
Tools Required for DPMS LR-308 Handguard Replacement
Having the right tools on hand makes the process significantly easier and safer. You'll need:
- Appropriate wrench or socket: This will depend on the type of barrel nut your rifle uses. Check your rifle's manual or the new handguard's instructions. A torque wrench is highly recommended to avoid damaging the barrel nut.
- Punch (brass is recommended): A brass punch helps prevent damage to your firearm during installation and removal.
- Allen wrenches: These are usually necessary for securing the handguard to the barrel nut. The sizes will vary depending on your chosen handguard.
- Upper receiver vise block (highly recommended): This tool securely holds your upper receiver, preventing it from shifting during the process and minimizing the risk of damage.
- Gun cleaning supplies: It's always a good idea to clean your rifle before and after any significant work.
Step-by-Step Handguard Replacement Instructions
Disclaimer: Always prioritize safety. If you're uncomfortable performing this task, seek assistance from a qualified gunsmith. Improper handling of firearms can lead to serious injury or damage.
This guide offers general instructions. Always refer to the specific instructions provided with your new handguard. Variations exist depending on the brand and model.
-
Unloading and Clearing the Weapon: Ensure the rifle is completely unloaded and clear of ammunition. Visually inspect the chamber and magazine.
-
Removing the Existing Handguard: This varies depending on the type of handguard. Consult your rifle's manual or refer to online resources for specific instructions for your existing handguard model. Generally, this involves removing screws or pins.
-
Removing the Barrel Nut: Carefully remove the barrel nut using the appropriate wrench. Apply consistent pressure and avoid damaging the threads. A torque wrench is crucial here to ensure proper tightening during reassembly.
-
Installing the New Barrel Nut (if necessary): If your new handguard requires a different barrel nut, install it according to the manufacturer's instructions. Ensure it is properly tightened to the specifications provided.
-
Installing the New Handguard: Carefully align the new handguard with the barrel nut and attach it using the included screws or clamps. Ensure a tight and secure fit.
-
Torque Check: Use a torque wrench to verify that all fasteners are tightened to the manufacturer’s specifications. Over-tightening can damage the handguard or barrel nut.
-
Final Inspection: Carefully inspect the installation, ensuring all parts are securely fastened and nothing interferes with the functionality of the rifle.
Conclusion
Replacing your DPMS LR-308 handguard is a manageable project for many gun owners with basic mechanical skills. By carefully following these steps and consulting the manufacturer's instructions, you can successfully upgrade your rifle and enhance its performance and ergonomics. Remember safety is paramount. If you have any doubts, consult a qualified gunsmith.
