Removing the barrel from your Smith & Wesson M&P 15 is a task that might seem daunting at first, but with the right tools and a step-by-step approach, it's a manageable process for any competent gun owner. This guide will walk you through the process safely and effectively. Remember always to prioritize safety and follow all firearm safety rules. This includes ensuring the firearm is unloaded and that you're in a safe environment before commencing any work.
Tools You'll Need
Before you begin, gather the necessary tools. Having everything ready beforehand will streamline the process and minimize frustration. You'll need:
- A properly fitted armorer's wrench: This is arguably the most crucial tool. Using an incorrectly sized wrench can damage your barrel nut or upper receiver. Ensure you have the correct size for your specific M&P 15 model.
- Punch (brass is preferred): A brass punch minimizes the risk of marring your firearm's finish. You'll use this to help remove the barrel pin.
- Mallet or Hammer: Use a mallet for gentler impact when driving the punch.
- Cleaning Rod (optional): A cleaning rod can help guide the punch and prevent damage.
- Torque wrench (recommended): While not strictly necessary for removal, a torque wrench is highly recommended for reassembly to ensure proper barrel nut torque.
Step-by-Step Barrel Removal
Now that you've gathered your tools, let's proceed with the barrel removal. Each step is crucial for a smooth and safe operation.
Step 1: Verify the Firearm is Unloaded
This is the most crucial step. Double-check, and then triple-check, that your M&P 15 is completely unloaded. Visually inspect the chamber and magazine well. Safety is paramount.
Step 2: Remove the Upper Receiver
Separate the upper receiver from the lower receiver. This typically involves simply pulling the two halves apart after releasing the takedown pins.
Step 3: Locate the Barrel Nut
The barrel nut is located at the front of the upper receiver, where the barrel meets the receiver. It's usually secured tightly.
Step 4: Secure the Upper Receiver
Clamp the upper receiver in a vise or use a similar secure method. This will provide stability and prevent accidental movement during the barrel nut removal process. Protect the finish of your receiver with soft jaws or cloths.
Step 5: Loosen the Barrel Nut
Use your armorer's wrench to loosen the barrel nut. Turn it counter-clockwise. This may require considerable force, especially if the nut is tightly torqued.
Step 6: Remove the Barrel Pin
Locate the barrel pin, usually a small pin near the front of the upper receiver. Use your brass punch and mallet to gently tap it out. Support the receiver to prevent damage from the impact.
Step 7: Remove the Barrel
Once the barrel nut and pin are removed, the barrel should slide out of the upper receiver. Some resistance is normal, but excessive force should be avoided.
Reassembly: A Note of Caution
Reassembling your M&P 15 requires the reverse process. However, remember the importance of proper torque on the barrel nut. Over-tightening can damage the barrel nut or receiver, while under-tightening can lead to barrel looseness and accuracy issues. A torque wrench is highly recommended for this step.
Conclusion
Removing the barrel from your Smith & Wesson M&P 15 is a straightforward process if approached methodically and safely. Remember to prioritize safety above all else. This comprehensive guide provides a detailed approach, but always consult your firearm's manual and seek professional assistance if you are unsure about any part of the process. Improper handling can result in damage to your firearm or personal injury.
