Switches Akimbo

Published on January 17, 2024
Duration: 15:43

This guide details the process of building and testing a full-auto Glock using a 3D printed DD17.3 frame. It covers frame assembly with heat-resistant filament, component integration with Zaffiri Precision slides and Holosun optics, and crucial legal considerations for full-auto functionality via a Class 2 SOT. The testing phase includes semi-auto checks, controlled full-auto bursts, and a heat resistance 'burn-down' test. Instruction emphasizes adherence to NFA regulations and safe handling practices.

Quick Summary

The DD17.3 is a 3D printable Glock frame featuring a reinforced front rail system for heat resistance, compatible with Glock Gen 3, 4, and 5 parts. For legal full-auto functionality, auto sear components must be installed by a Class 2 SOT holder, adhering to NFA regulations. The frame, when printed with materials like Polylite PLA Pro, can withstand significant heat during sustained fire tests.

Chapters

  1. 00:00Intro Montage
  2. 01:25Project Introduction & Legal Disclaimer
  3. 02:16DD17.3 Frame Technical Improvements
  4. 03:33Range Testing: Semi-Auto & Full-Auto
  5. 05:29Performance & Burst Fire Evaluation
  6. 09:50Akimbo Full-Auto Demonstration
  7. 12:00Heat Resistance Burn-down Test

Frequently Asked Questions

What is the DD17.3 and what makes it suitable for 3D printing?

The DD17.3 is a 3D printable Glock frame designed with structural improvements, particularly a reinforced front rail system for heat resistance. It's compatible with Glock Gen 3, 4, and 5 components and is often printed with materials like Polylite PLA Pro for enhanced durability.

How is full-auto functionality legally achieved with 3D printed firearms?

Achieving legal full-auto functionality typically requires the use of auto sear components. These must be legally owned and installed by a Class 2 SOT (Special Occupational Taxpayer) holder to comply with NFA regulations.

What components were used in the custom Glock build shown?

The custom build featured a DD17.3 3D printed frame, Polylite PLA Pro filament, Zaffiri Precision slides (gold finish), and a Holosun HS407C optic. The auto sear was legally installed by an SOT holder.

What is the purpose of the 'burn-down' test in the video?

The 'burn-down' test involves firing multiple extended magazines rapidly to assess the heat resistance of the 3D printed frame. This demonstrates the material's ability to withstand high temperatures generated during sustained full-auto fire before showing signs of failure like smoking.

More Gunsmithing & DIY Videos You Might Like

More from PSR

View all →