Removing a Bravo Company Manufacturing (BCM) handguard might seem daunting, but with the right tools and a methodical approach, it's a straightforward process. This guide will walk you through removing a BCM KMR or similar handguard system, covering potential challenges and offering helpful tips for a smooth and safe disassembly.
Tools You'll Need
Before you begin, gather the necessary tools. This will make the process much easier and prevent any delays or frustration. You'll need:
- Appropriate sized wrench or socket: This will depend on the specific handguard and barrel nut; BCM typically utilizes a proprietary wrench. Consult your handguard's instructions for the correct size.
- Punch (optional, but recommended): A brass punch is ideal for tapping out the barrel nut, minimizing the risk of damage. A steel punch can work, but be extremely careful to avoid marring the parts.
- Torque wrench (optional, but highly recommended): For safe reassembly, a torque wrench ensures you tighten the barrel nut to the manufacturer's specifications, preventing damage and ensuring proper function.
- A clean workspace: Having a clean and organized workspace makes the process easier and reduces the risk of losing small parts.
Step-by-Step Removal Process
1. Safety First: Always ensure your firearm is unloaded and cleared before beginning any disassembly. Double-check!
2. Remove the Gas Tube: Detach the gas tube from the upper receiver. This typically involves removing a retaining pin and carefully sliding the gas tube off. Refer to your firearm's manual for specific instructions if needed.
3. Loosen the Barrel Nut: This is the most crucial step. Using the correct wrench or socket, carefully loosen the barrel nut. Do not remove it completely yet. Apply even pressure to avoid stripping the nut or damaging the threads. If the nut is exceptionally tight, apply penetrating oil and allow it to sit for a few minutes before attempting to loosen it further.
4. Gently Tap the Barrel Nut: Using a brass punch, gently tap the barrel nut counter-clockwise. This helps to break it free from the threads. Avoid forceful strikes, as this could damage the barrel nut or receiver.
5. Remove the Barrel Nut: Once the barrel nut is loose enough, you can unscrew it by hand. Keep a firm grip on the upper receiver to prevent it from twisting unexpectedly.
6. Remove the Handguard: With the barrel nut removed, the BCM handguard should slide off the barrel. Some slight resistance is normal; gently work it off.
Troubleshooting Common Issues
- Extremely Tight Barrel Nut: If the barrel nut is exceptionally tight, applying penetrating oil and allowing it to sit for some time can make a significant difference. Consider using heat (with caution!), but only after ensuring you have proper ventilation and that you won't damage any components.
- Stripped Barrel Nut: If the barrel nut is stripped, you'll likely need a replacement. Attempting to force it could cause further damage.
- Damaged Handguard: Be mindful of the handguard material and avoid using excessive force during removal.
Reassembly: A Quick Note
Once you've completed the removal, remember to consult your BCM handguard instructions and your firearm's manual for proper reassembly. Pay close attention to torque specifications to ensure safe and reliable function. Improper reassembly can lead to malfunctions and potential damage.
This guide provides general instructions. Always refer to the specific instructions provided with your BCM handguard and firearm for detailed guidance. If you are uncomfortable performing this task, seek assistance from a qualified gunsmith.
