How to Install a Prefit Rifle Barrel: A Step-by-Step Guide
Installing a prefit rifle barrel is a great way to enhance your firearm’s performance without the need for advanced gunsmithing skills. Prefit barrels are precisely machined to fit specific actions, making the installation process straightforward for anyone with the right tools. Here’s a step-by-step guide to help you install a prefit rifle barrel.
Tools and Materials Needed:
- Prefit rifle barrel
- Action wrench
- Barrel vise
- Torque wrench
- Go/no-go gauges
- Anti-seize lubricant
- Safety glasses
- Cleaning supplies
Step 1: Gather Your Tools and Prepare Your Workspace
Before starting, ensure you have all the necessary tools and materials. Set up a clean, well-lit workspace to keep parts organized and prevent any contamination of your new barrel.
Step 2: Remove the Old Barrel
1. Remove Factory Barrel: Use the barrel vise to hold the barrel securely. Apply steady pressure and turn the action wrench counterclockwise to unscrew the old barrel from the action. This may require some force, especially if the barrel has been installed for a long time. For factory barrels I recommend using an action wrench that attaches to the outside of the action. This will keep you from putting too much torque or strain on the action.
Step 3: Prepare the Action and New Barrel
1. Clean the Threads:*Use a cleaning brush and solvent to clean the threads on the action and the new barrel. This ensures a smooth installation and proper seating of the barrel.
2. Apply Anti-Seize Lubricant:*Apply a small amount of anti-seize lubricant to the threads of the new barrel. This prevents galling and makes future disassembly easier.
Step 4: Install the New Prefit Barrel
1. Align and Thread the Barrel: Carefully align the threads of the new barrel with the action and begin threading the barrel into the action by hand. Ensure it goes on straight to avoid cross-threading.
2. Torque the Barrel: Once hand-tightened, use the action wrench and barrel vise to tighten the barrel. Refer to the manufacturer’s specifications for the recommended torque value and use a torque wrench to apply the correct amount of force.
I recommend using 95 ft lbs of torque to install a prefit barrel.
Step 5: Headspace Check
1. Insert Go Gauge: Insert the go gauge into the chamber and close the bolt. The bolt should close smoothly without resistance, indicating proper headspace.
DISCLAIMER- if you feel more resistance than you think should be necessary, remove the ejector to ensure that is not causing the resistance.
2. Insert No-Go Gauge: Insert the no-go gauge and attempt to close the bolt. The bolt should not close on the no-go gauge. If it does, the headspace is too large and requires adjustment.
Step 6: Final Checks
1. Inspect the Installation:*Carefully inspect the installation for any signs of improper fitting or damage. Ensure the barrel is securely attached and properly aligned with the action.
2. Clean the Barrel: Before firing, clean the new barrel thoroughly to remove any manufacturing residues or debris from the installation process.
Step 7: Test Fire
1. Safety First: Always follow proper safety protocols when test firing your rifle. Use a safe shooting environment and appropriate protective gear.
2. Test Fire: Fire a few rounds to ensure the new barrel functions correctly and maintains proper accuracy. Check for any signs of excessive pressure or malfunctions.
Conclusion
Installing a prefit rifle barrel can significantly improve your firearm’s performance and accuracy. By following these steps carefully and using the right tools, you can achieve a professional-grade installation without the need for a gunsmith. Always consult your barrel and rifle manufacturer’s instructions for specific details and torque specifications to ensure a safe and successful installation. Happy shooting!