Turn your AR15, Into An AR9 ? Yup! 7 Parts, 3 Tools & A Few Bucks And Voila! 9mm PCC Conversion

Published on July 28, 2023
Duration: 6:22

This guide details the conversion of an AR-15 to a 9mm PCC using seven key parts and three essential tools. It covers the installation of specific components like the AT3 Spear Handguard, Faxon 9mm Barrel, Breek Arms Flash Hider, and Silvan Arms Conversion Block. The process emphasizes correct torquing procedures and compatibility considerations for a reliable 9mm build.

Quick Summary

Converting an AR-15 to a 9mm PCC involves installing a 9mm bolt carrier group, 9mm barrel, 9mm flash hider, and a magazine conversion block onto an AR-15 upper and lower receiver. Essential tools include torque wrenches and Allen wrenches. The barrel nut should be torqued to 40 ft-lbs, and handguard screws to 30 inch-pounds.

Chapters

  1. 00:00AR15 to AR9 PCC Conversion Intro
  2. 00:27Speaker Introduction & Cost Savings
  3. 00:49Bolt Hold Open Functionality
  4. 01:03AT3 Tactical Branded Parts
  5. 01:36Faxon Barrel & Muzzle Device
  6. 02:18Required Tools for Build
  7. 02:49Barrel Installation & Torquing
  8. 03:18Handguard Installation
  9. 04:09Flash Hider Installation
  10. 04:31Magazine Adapter & Installation
  11. 05:05Final Assembly & Function Test
  12. 05:46Troubleshooting & Buffer Weights

Frequently Asked Questions

What are the essential parts needed to convert an AR-15 to a 9mm PCC?

You'll need a 9mm bolt carrier group, a 9mm barrel (like the Faxon 16" model), a 9mm flash hider (e.g., Breek Arms BFO), a 9mm conversion block for Glock magazines (like Silvan Arms), an AR-15 upper receiver, an AR-15 lower receiver, and a handguard (e.g., AT3 Spear 15").

What tools are required for an AR-15 to 9mm PCC conversion?

Essential tools include a torque wrench (ft-lbs and in-lbs), a barrel nut wrench, a torque screwdriver, a 5/32 Allen bit, and standard Allen wrenches. A bench vise with padding can also be helpful.

What is the recommended torque value for the AR-15 barrel nut during a 9mm conversion?

The recommended torque value for the barrel nut during this AR-15 to 9mm PCC conversion is 40 ft-lbs. It's also advised to hand-tighten, untighten, and retighten a few times to season the threads before final torquing.

Can an AR-15 be converted to fire 9mm ammunition?

Yes, an AR-15 lower receiver can be converted to fire 9mm ammunition by installing a dedicated 9mm upper receiver assembly, which includes a 9mm bolt carrier group and barrel. A magazine conversion block is typically used to adapt standard AR-15 lowers for 9mm magazines.

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