Installing an Angstadt Arms handguard


If you have any doubts in your ability to perform the following actions, stop immediately and seek assistance from a qualified gunsmith. If you need clarification on any of the steps below, please contact us to speak with a member of our support team.

Always wear proper personal protective equipment (PPE) including adequate eye protection when servicing a firearm.

Parts needed:

  • Angstadt Arms handguard
  • Upper receiver
  • Barrel
  • 1 – 1/4″ torque wrench
  • 5/32 torque wrench or hex key

1. Remove bolts from handguard

  • Remove the 10-32 bolts from the handguard using a 5/32 driver or hex key.
  • Remove barrel nut from handguard
  • Slide the barrel nut out from the handguard.

2. Install barrel 

  • Align the indexing pin on your barrel with the upper receiver and fully seat the barrel extension into the receiver.

3. Install barrel nut

  • Install the barrel nut on the upper receiver and tighten down to 35FT-LBS using a 1 – 1/4″ torque wrench.

4. Install handguard

  • Slide the handguard over the barrel and onto the barrel nut. Reinstall 2 bolts and tighten to 70IN-LBS torque using a 5/32 driver.