FAQ – Questions & AnswersCategory: AR-15 FAQHow to install AR 15 trigger?
Eduardo Soto asked 2 years ago
Can i to install AR 15 trigger?

5 Answers
Antony answered 2 years ago

There are a few things you’ll need to install an AR-15 trigger properly:

  • A punch (to drive out the trigger and disconnector pins)
  • A small hammer
  • A set of needle-nose pliers
  •  A torque wrench (set to 25 in/lbs)
  • A flat work surface

How to install AR 15 trigger?

You’ll also need the new trigger assembly and springs. Make sure the new springs are compatible with your make and model of a rifle!

Now, onto installation:

1) Remove the magazine and clear the chamber – never work on a loaded firearm!

2) Take off the receiver end cap by pushing down on the detent (located inside the upper receiver), then rotate the end cap counter-clockwise until it’s free.

3) Using your punch and hammer, drive out the two trigger/disconnector pins. They may be a tight fit, so use caution not to damage them or the receiver.

4) Remove the old trigger assembly by simply pulling it out of the receiver. Be careful not to lose any small springs or parts!

5) Insert the new trigger assembly into the receiver, making sure it’s properly aligned.

6) Using your pliers, reinstall the trigger and disconnector pins. Make sure they’re flush with the surface of the receiver – if they’re protruding, they could snag on something and cause an accidental discharge. Use your torque wrench to tighten the pins to 25 in/lbs.

7) Replace the receiver end cap, making sure the detent is properly aligned. Rotate the end cap clockwise until it’s tight. That’s it – you’re done! Be sure to test your new trigger assembly thoroughly before using it in a real-world situation.

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Cruz answered 2 years ago

You will need a few tools to install your AR 15 trigger, including a vise, Archer’s friend, or similar tool, drill, dye set, and deburring tool.

Many people recommend lubricating the parts of the trigger assembly with gun oil before installation.

How to install AR 15 trigger?

1. Unload your AR 15 and make sure the chamber is clear. Remove the charging handle and bolt carrier group.

2. Place the lower receiver in a vise jaw lined with padded material to protect the receiver from damage. You will also want to block the rear take-down pinhole so that the receiver doesn’t move while you are working on it.

3. Use an Archer’s friend or a similar tool to depress the disconnector while pushing out the trigger and hammer pins.

4. Remove the old trigger and hammer assembly from the lower receiver.

5. Install the new trigger and hammer assembly, being careful to line up all of the parts correctly.

6. Use a drill to make pilot holes for the trigger and hammer pins. These should be slightly smaller than the pins themselves so that they can be driven in without too much force.

7. Use a dye set to mark the location of the trigger and hammer pin holes on the new trigger and hammer assembly. This will help you to align the parts correctly when you install them.

8. Deburr the holes on the new trigger and hammer assembly using a deburring tool. This will remove any sharp edges that could damage the receiver.

9. Lubricate the parts of the trigger assembly with gun oil before installing them in the receiver. This will help to prevent corrosion and make the assembly operate more smoothly.

10. Drive the trigger and hammer pins into place using a punch or similar tool. Be careful not to damage the receiver.

11. Install the bolt carrier group and charging handle. Test the trigger by pulling it to see if it functions properly. If it does not, check to make sure all of the parts are installed correctly and that there is no damage to any of the parts.

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Ivan answered 2 years ago

There are a few different ways to install an AR-15 trigger, but the most common and simplest way is to do it yourself.

Here’s a step-by-step guide on how to do it:

1. First, remove the existing trigger from your AR 15 by pulling out the pin that holds it in place.

2. Next, take your new trigger and insert it into the opening where the old trigger was located. Make sure that the new trigger is seated correctly and the pin holes are aligned.

3. Now, put the pin back into place to secure the new trigger in place. You may need to use a hammer or other tool to lightly tap it into place so that everything is snug and secure.

That’s it! You’ve now successfully installed your new AR 15 trigger. Enjoy your upgraded rifle and improved shooting experience.

How to install AR 15 trigger?

Lewis answered 2 years ago

There are a few different ways to install an AR-15 trigger, but the most common method is to simply insert the trigger into the receiver and then use a set screw to secure it in place.

Make sure the set screw is tight enough that the trigger doesn’t move around but don’t overtighten it or you could damage the receiver. Once the trigger is installed, you can then install your other AR 15 parts and components.

If you’re not comfortable doing this yourself, there are plenty of gunsmiths and armorers who can do it for you.

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Olson answered 2 years ago