How to Install the PSA Hex Rail: A Step-by-Step VIDEO Guide

Welcome, AR rifle builders and enthusiasts! If you’re looking to upgrade your AR15 platform with the latest in rail technology, the Palmetto State Armory (PSA) Hex Rail is a top-notch choice on your next rifle. This new rail system offers enhanced functionality, ease of installation, and improved ergonomics. In this guide, we’ll walk you through the installation process to help you get your Hex Rail up and running.

What’s in the PSA Hex Rail Box?

When you purchase your Palmetto State Armory Hex Rail, you’ll find the following components:

  • Hex Rail
  • Barrel Nut
  • Three Handguard Screws
  • Two Set Screws (one long and one short)

PSA HEX RAIL ASSEMBLY

PSA HEX RAIL ASSEMBLY
PSA HEX RAIL ASSEMBLY

Now, let’s dive into the installation process…..

Step 1: Prepare Your Upper Receiver

Start by removing the old rail from your AR15 rifle, leaving just the barrel exposed. Ensure your workspace is clean and you have all the necessary tools ready.

Step 2: Install the Barrel Nut

  1. Apply Grease: Use a small brush to apply a bit of barrel nut grease. Spread it evenly with your finger.
  2. Slide the Barrel Nut: Slide the barrel nut over the barrel and hand-tighten it.
  3. Torque the Barrel Nut: Using a wrench, like the Wheeler Engineering Delta Series AR Torque Wrench, tighten the barrel nut to about 50 foot-pounds. The mil-spec range is between 30 and 80 foot-pounds, but 50 is a reliable midpoint.

Step 3: Install the Gas Tube and Gas Block

  1. Slide Them On: Align the gas tube and gas block over the barrel.
  2. Tighten the Screws: Use a 3/32 screw to tighten them to 30 inch-pounds. Tighten both screws gradually, alternating between them to ensure even pressure.

Step 4: Install the Hex Rail

  1. Slide the Rail: Carefully slide the rail over the barrel, gas tube, and barrel nut. If it’s too tight, use the smaller set screw to slightly spread the handguard.
  2. Secure the Rail: Ensure the anti-rotational tabs on the rail align with the upper receiver.

Step 5: Install Handguard Screws

  1. Insert Screws: Use a 9/64 bit to start the screws by hand.
  2. Snug Them Up: Tighten the middle screw first, then the side screws. Follow the pattern similar to tightening lug nuts on a car to ensure even pressure.
  3. Torque the Screws: Set your torque wrench to 40 inch-pounds and tighten each screw.

Step 6: Install Set Screws

  1. Start with the Long Screw: If you haven’t used the smaller screw to spread the handguard, start with the long screw. Tighten it to 10 inch-pounds.
  2. Install the Short Screw: Flip the upper around and insert the shorter screw into the offset hole. Now with your Wheeler Torque Wrench tighten it to 10 inch-pounds as well.
  3. Double Check: Ensure both screws are secure by rechecking them.

Step 7: Reinstall the Muzzle Device

  1. Attach the Device: Screw the muzzle device back on by hand.
  2. Secure it: Use a muzzle device tool to snug it up, ensuring it’s properly aligned.

Live Inventory Price Checker

PSA 15" Lightweight Hex Rail Assembly Palmetto State Armory $ 155.99 $ 99.99
PSA 15" Lightweight Hex Rail Assembly Palmetto State Armory $ 155.99 $ 99.99
PSA 13" Lightweight Hex Rail Assembly Palmetto State Armory $ 149.99 $ 89.99
PSA 5" Lightweight Hex Rail Assembly Palmetto State Armory $ 119.99 $ 74.99

Ready for the Range

With the Hex Rail installed, your AR15 is ready for action. The new rail system improves your firearm’s aesthetics and functionality with features like the full-length Picatinny top rail and M-LOK slots. These upgrades make customization easier and more versatile, catering to various shooting scenarios.

Remember, if you purchase a Hex Rail, share your setup on social media and tag Palmetto State Armory. They love seeing their products in use. Happy shooting, and always prioritize safety in all your firearm activities.

Stay tuned for more tutorials and updates from Palmetto State Armory. Don’t forget to like, comment, and subscribe to their channel for the latest in firearm innovation.

Read Related:

Palmetto State Armory’s New HEX Rail Enhances Firearm Customization ~ VIDEO

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2 Comments
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DIYinSTL

Why would an octagonal (8 sided) rail be called “Hex Rail” when “hex” implies 6? Unless you believe an object can magically throw hexes it makes no sense.

musicman44mag

All these cool things you can add to your rifle. I put a quad rail on mine so I could mount a light on the side and have more slots to move my scope farther forward. Looks cool but one thing I didn’t really think of and that is weight. My rifle with the quad rail is a lot heavier. I think this rail here might be the answer and then add a 45 degree stand off for the light or laser or what ever you want to keep the weight down. It’s not as much as my 7mm mag… Read more »