Is This Pistol STILL RELEVANT? - TheFirearmGuy

Published on January 18, 2026
Duration: 5:55

The 80% Arms GST-9 is presented as a relevant Glock-style pistol option, particularly after a price reduction to around $600. The review highlights its modular grip system, allowing conversion between Glock 19 and Glock 45/19X sizes, a fluted barrel, direct optic mount (RMR/RMS), and nickel boron coated internals. The host, with extensive ownership experience, demonstrates its reliable performance on the range in adverse conditions.

Quick Summary

The 80% Arms GST-9 is a relevant Glock-style pistol featuring a modular grip that converts between Glock 19 and Glock 45/19X sizes. It boasts a fluted barrel, RMR/RMS optic cut, and nickel boron internals, all offered at a competitive price point around $600.

Chapters

  1. 00:00Introduction: Is This Pistol Still Relevant?
  2. 00:41Previous Video Recap: Sig P320 XCompact
  3. 02:0180% Arms GST-9 Features Walkthrough
  4. 02:44GST-9 Range Performance Demonstration
  5. 02:57Pricing and Market Competitiveness
  6. 04:50Modular Backstrap Innovation Explained

Frequently Asked Questions

What makes the 80% Arms GST-9 pistol modular?

The 80% Arms GST-9 features a unique modular grip system. Users can easily swap out the grip extension to change the frame size, converting it from a Glock 19 size to a Glock 45/19X size, which accommodates higher capacity magazines.

What are the key features of the 80% Arms GST-9?

Key features include a fluted barrel, a slide cut for direct mounting of RMR/RMS footprint optics, a full-length picatinny rail, and nickel boron coated internal components for durability and smooth operation.

How does the 80% Arms GST-9 compare in price to standard Glocks?

The GST-9 is now available fully assembled and serialized for around $600. This price point makes it a competitive option when compared to the cost of many standard Glock models, especially considering its enhanced features.

Is the 80% Arms GST-9 reliable for shooting?

Yes, the video demonstrates the GST-9 performing reliably during range testing in snowy conditions. It showed consistent cycling and accuracy on steel targets, indicating good operational dependability.

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