80 Percent Arms Introduces the GST-9 MOD1

80 Percent Arms recently announced the introduction of their new modular 80% pistol frame, the GST-9 MOD1.

GST-9 MOD1 Pistol Frame in Black. [Photo courtesy of 80 Percent Arms]

From 80 Percent Arms

Introducing the GST-9, the world’s first modular polymer 80% pistol compatible with Generation 1-3 Glock components and both Glock 17 and Glock 19 magazines. Engineered from the inside out to improve upon the original Glock design, the GST-9 frame is packed with features not found anywhere else. We spent two years studying customer feedback to determine what features were missing among the different options, and not only incorporated what we found, but we gave you the option to choose how to build each frame.

Released in November 2019, the original GST-9 took the 80% world by storm, offering modular enhancements to a Glock style frame without losing any parts compatibility. Two years and hundreds of thousands of rounds downrange later, we’ve raised the bar again with the GST-9 Mod 1.

80 Percent Arms GST-9 MOD1 Pistol Frame in FDE
GST-9 MOD1 Pistol Frame in FDE. [Photo courtesy of 80 Percent Arms]

What makes the GST-9 Mod 1 version so special?

  • Modular frame gives you the possibility of a 19, 19X, 19L, & 17 size weapon system in a single 4-in-1 platform
  • Compatible with Glock 19 3rd generation parts, holsters, & aftermarket accessories. GST-9 is the first and only 80% lower that is compatible with Glock holsters
  • Ergonomic features include an undercut trigger gaurd, high beavertail, glove bevel, scalloped mag release, no finger grooves, & newly redesigned gas pedals as standard
  • Premium internal rail components extended 3X, made of stainless steel, with multiple coating options
  • Easily ships to your door & completes in minutes

With two years of feedback from our customers, we made a few changes to our GST-9 frame to stay ahead of the competition. First, we relocated the gas pedals forward, and re-contoured them to further optimize control over the frame through the recoil cycle, helping to drive the gun back to target faster and more efficiently. We also re-contoured our modular grip attachment surfaces so that every grip option gives you a perfect fit, for the cleanest build possible. Internally, we separated the rear-rail module to improve the builder’s experience, with users now only needing to line up one hole at a time, further simplifying the build process.

The GST-9 Mod 1 is built from the ground up to be reliable, customizable, and accurate. It’s the most functional and user-customizable 80% Glock compatible frame on the market. And, like all of our products, it is backed by our Lifetime Warranty and our premium customer support. Every MOD1 Frame comes with a Compact Grip Module in the selected frames color.