Glock 17 80 Percent Lower - Released in November 2019, the original GST-9 has taken over 80% of the world, offering modular upgrades to a Glock-style frame without compromising any parts. After two years and hundreds of thousands of shots, we have raised the bar again with the GST-9 MOD1.

After two years of feedback from our customers, we have made several changes to our GST-9 structure to stay ahead of the competition. First, we've moved the gas pedals forward and reshaped them to further optimize frame control during the recoil cycle, helping you aim your weapon faster and more efficiently. We've also reshaped our modular grip mounting surfaces to ensure that each grip variant is the perfect fit for the most accurate build possible. Inside, we split the rear rail module to make assembly easier, and users now only need to align one hole at a time, further simplifying the assembly process.

Glock 17 80 Percent Lower

Glock 17 80 Percent Lower

The GST-9 MOD1 is built from the ground up to be reliable, customizable and accurate. It is the most feature-packed and user-customizable frame on the market, 80% Glock compatible. And like all of our products, it comes with a lifetime warranty and top-notch customer support. Each MOD1 frame comes with a compact handle module in the frame color of your choice.

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How easy is it to build? Read the instruction manual and see for yourself! You have questions? here are the frequently asked questions

*MOD1 does NOT fit Glock 17 slides. MOD1 frame fits Glock 19, Glock 19L and Glock 19XL slides*

Due to recently changed ATF regulations, we cannot legally include a frame or guide frames in a MOD1 frame. The MOD1 fixture and frame must be purchased from our website as two separate items. Each round includes a set of MOD1 frame binary files. You will need to purchase one gyroscope for each MOD1 frame you plan to build. Guide frames are ONLY included with the axle kit, not the lower 80% themselves.

Shipping Restrictions: This item cannot be delivered to New Jersey, New York, Hawaii, Connecticut, Rhode Island, Washington DC, Maryland, Illinois, California, Washington DC, AllensparkColorado, Coal Creek CanyonColorado, EldoraColorado, Eldorado SpringsColorado , Gold HillColorado, Gold HillColorado , HygieneColorado, NiwotColorado and Denver Colorado.

Polymer 80 Pfs9 Serialized Glock 17/22 Pistol Standard Frame

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