A Glock With Minimum Requirements (And Pr*nt Time)

Published on February 14, 2026
Duration: 17:38

This guide details the assembly and testing of the MSRG 19, a minimalist 3D-printed Glock 19 frame. It covers installing critical components like Aves rails and a locking block, followed by range testing to identify potential reliability issues such as heavy trigger pull and light primer strikes. The guide also touches upon high-capacity testing and an extreme durability test involving a vehicle, highlighting the capabilities of FDM 3D printing in firearm construction.

Quick Summary

The MSRG 19 is a minimalist 3D-printed Glock 19 frame made from Polymaker PLA Pro, weighing just 4.3 oz. While it prints in approximately 3.5 hours and shows remarkable durability (surviving being run over by a vehicle), initial testing revealed a heavy trigger pull and light primer strikes, likely due to rail fitment issues.

Chapters

  1. 00:00Introduction to MSRG 19
  2. 01:13Design Philosophy & Printing
  3. 02:58Sponsor Break: Atrius Development Group
  4. 03:26Technical Build Details
  5. 04:44Range Testing & Reliability Issues
  6. 08:19High Capacity Testing
  7. 13:22Durability Torture Test
  8. 14:01Final Assessment

Frequently Asked Questions

What are the key features of the MSRG 19 3D-printed Glock frame?

The MSRG 19 is a minimalist 3D-printed Glock 19 frame designed for extreme concealability. It uses minimal material, lacks a trigger guard, features a skeletonized grip, and weighs only 4.3 oz with lower parts installed. It prints in about 3.5 hours using Polymaker PLA Pro.

What issues were encountered during the range testing of the MSRG 19?

During range testing, the MSRG 19 exhibited a very heavy trigger pull (estimated 12-30 lbs) and occasional light primer strikes. These issues were attributed to potential rear rail fitment problems causing slide movement during the trigger pull.

How durable is the MSRG 19 3D-printed frame?

The MSRG 19 frame demonstrated exceptional durability. In a test, it was driven over by a Toyota 4Runner on a gravel surface and remained intact and functional immediately afterward, showcasing the strength of the PLA Pro material.

What components are needed to build the MSRG 19 frame?

To build the MSRG 19, you need a standard Glock 19 lower parts kit, Aves rails (front and rear), a heat-treated machined locking block, and a compatible Glock 19 slide and magazine. The frame itself is printed using Polymaker PLA Pro.

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