How to Install a Free Float Rail AR15: A Step-by-Step Guide

When it comes to customizing your AR15 rifle, installing a free float rail is an excellent way to improve accuracy and overall performance. A free float rail allows for a more consistent barrel-to-handling relationship, reducing the risk of movement during firing. In this article, we'll walk you through the process of installing a free float rail on your AR15.

Before You Begin

Before starting the installation process, make sure you have all the necessary tools and materials. This includes:

* Your AR15 rifle

* A free float rail (compatible with your rifle's caliber and barrel length)

* Allen wrenches (3/16' and 1/4')

* Torx driver (T-25)

* Safety glasses

* Hearing protection

Step 1: Remove the Handguard

To install a free float rail, you'll need to remove the existing handguard from your rifle. This is typically done by sliding the handguard off the barrel nut and then removing any screws or clips holding it in place.

Step 2: Clean the Barrel Nut

Once the handguard is removed, clean the barrel nut with a cloth or brush to remove any debris or residue. This will ensure a smooth installation process.

Step 3: Install the Free Float Rail

Slide the free float rail over the barrel nut, making sure it's properly seated and aligned. Use your Allen wrenches to secure the rail in place by tightening the screws on either side of the rail.

Step 4: Tighten the Barrel Nut

Using your Torx driver, tighten the barrel nut in a star pattern to ensure even pressure is applied. Make sure not to overtighten, as this can damage the barrel or free float rail.

Step 5: Adjust and Secure the Rail

Once the barrel nut is tightened, use your Allen wrenches to adjust and secure the free float rail to your rifle's upper receiver. This should be done in a way that allows for even pressure distribution across the rail.

Step 6: Reattach the Handguard (Optional)

If you're reusing the original handguard or installing a new one, now is the time to do so. Make sure it's properly secured with screws and clips.

Tips and Considerations

When installing a free float rail on your AR15, there are a few things to keep in mind:

* Choose a rail that's compatible with your rifle's caliber and barrel length.

* Use a torque wrench to ensure the barrel nut is tightened correctly.

* Apply even pressure when tightening the screws on the free float rail.

* Consider installing a QD sling mount for easy attachment and detachment of your sling.

Installing a free float rail on your AR15 can greatly improve the accuracy and performance of your rifle. By following these steps, you'll be able to add this essential accessory to your rifle in no time. Remember to take your time, use proper techniques, and consider any additional tips or considerations when installing your new free float rail.

How to install a free float rail ar15