Last year Jeremy and I got to shoot a prototype of Franklin’s G-S173 binary trigger for the GLOCK 17. A good time was had by all. It worked and worked well.
It’s been a long time since that January, 2022 range day and in the mean time, Franklin Armory’s been working on the G-S173 and perfecting it. Now, it’s ready for prime time.
Franklin Armory’s put a lot of work into refining the G-S173 since we shot that prototype.
One very good addition is the rear plate indicator that lets you look down at your G-S173-equipped GLOCK 17 Gen3 and easily determine if it’s in regular single fire or binary mode.
They’ve made the slide optic ready and equipped it with tritium sights, front and rear. We just need to get our hands on a G17 Gen3 lower to give this one a try and a full review. Until then, here’s Franklin Armory’s press release . . .
Franklin Armory, Inc., one of America’s most innovative manufacturers of firearms, parts, and accessories has begun shipping its first Binary trigger for a striker fired handgun, the G-S173 for the Glock 17 Gen 3. Engineered with Franklin Armory’s patented Binary Firing System (BFSTM), G-S173 is the first pull-and-release trigger to provide Glock 17 users with the ability to actively select between regular semiautomatic and Binary® modes and safely cancel the release round.
G-S173 features include:
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- Binary/Semiautomatic selector paddle
- Front and rear tritium night sights
- Optics ready to accommodate multiple adapter plates (sold separately)
- Semi/Binary mode indicator on back plate
- High-tactile front and rear slide serrations
- Anti-glare slide top stripe serrations
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More information about G-S173 can be found in the video: “Franklin Armory Introduces The New G- S173 Binary Trigger for Glock 17 Gen 3.”
In Binary mode, a single round is fired when the trigger is pulled and a single round is fired when the trigger is released. One of the revered safety features incorporated into all Franklin Armory BFSTM triggers is the ability to cancel the release round. To cancel the release round on G-S173, simply move the selector lever located on the slide from Binary® to the “semi” position before releasing the trigger.
Additional information about how Franklin Armory’s BFSTM works can be viewed in the video: “Why Binary is Better.”
MSRP for Franklin Armory’s G-S173 Binary trigger and slide is $899.99.
For more information about G-S173 and other innovative Franklin Armory products, visit FranklinArmory.com and follow the organization on Facebook, Instagram, Twitter and YouTube. To inquire about testing and evaluation for G-S173, please email [email protected].










