DIY Pistol Optic Cuts (and 0% AR Receivers!): The Ghost Gunner 3S

Published on October 31, 2022
Duration: 14:24

This guide details how to use the Ghost Gunner 3S CNC machine for advanced DIY firearm modifications. It covers milling professional-grade optic cuts on pistol slides and manufacturing 0% AR-15 receivers. The guide emphasizes the machine's capabilities, software, and approximate milling times, drawing on the expertise of Cody Wilson, founder of Defense Distributed.

Quick Summary

The Ghost Gunner 3S is a CNC machine from Defense Distributed enabling DIY pistol optic cuts and 0% AR receiver manufacturing. With a 4x increase in rigidity (via upgrade) and new firmware, it offers enhanced steel milling capabilities, completing an RMR cut in ~45 mins and an AR pocket in ~35 mins.

Chapters

  1. 00:20Introduction of Ghost Gunner 3S
  2. 01:32Upgrade Path for GG3 Users
  3. 04:47Pistol Optic Cuts
  4. 06:140% AR Receivers and Thread Milling
  5. 09:27RMR Standards and Library
  6. 11:03Pricing and Availability
  7. 12:04Milling Times

Frequently Asked Questions

What is the Ghost Gunner 3S and what are its primary capabilities?

The Ghost Gunner 3S is a CNC machine from Defense Distributed designed for DIY firearm component manufacturing. Its key capabilities include milling professional-grade optic cuts on pistol slides (like for the Trijicon RMR) and creating 0% AR-15 receivers from raw stock, including complex operations like thread milling.

How does the Ghost Gunner 3S improve upon the previous Ghost Gunner 3 model?

The 'S' in Ghost Gunner 3S signifies speed and steel. It features a closed-loop spindle control firmware for more powerful steel milling and offers an optional mechanical upgrade for 4x increased rigidity, enhancing precision and capability over the original GG3.

What are the approximate milling times for common tasks on the Ghost Gunner 3S?

The Ghost Gunner 3S can mill an AR-15 fire control pocket in approximately 35 minutes. Milling a Trijicon RMR cut on a Glock pistol slide, including the footprint, posts, and threading, takes about 45 minutes.

Can existing Ghost Gunner 3 owners upgrade to the new capabilities?

Yes, existing Ghost Gunner 3 owners can access the new firmware update for free. A mechanical upgrade kit is also available, requiring factory installation via RMA, to increase machine rigidity by four times for advanced steel milling.

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