Alpha Pack – Complete Springs
Glock 19 / 19X / 45 Gen 5
The Alpha Pack – Complete Springs Kit for Glock 19, 19X, and 45 Gen 5 is built for shooters who want their gun to cycle smoother, shoot flatter, and feel more consistent — without sacrificing reliability.
What this kit does:
This kit This kit combines ISMI® performance springs with Ghost Inc.® components and lets you control how your Glock cycles and how the trigger feels — instead of being stuck with factory compromise.
It helps with:
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Smoother recoil
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Flatter shooting
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Cleaner trigger feel
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Better reset
You’re not changing the gun’s personality — you’re cleaning it up.
Why people buy it:
Because the stock setup is built to work okay with everything. This lets you make it work right with your ammo and shooting style.
What each part helps with
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Recoil springs → Control slide speed and recoil feel
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Striker springs → Adjust trigger weight and ignition force
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Trigger return spring → Stronger, cleaner reset
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Plunger spring → Smoother trigger press
Who this is for
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Shooters running G19/19X/45 Gen5
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Range, competition, or tuned duty-style builds
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Anyone who wants control instead of guesswork
What’s Included & What Fits What
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Striker Springs (4lb, 4.5lb, 6lb)
Fits most Glock Gen 5 9mm models. Used to tune trigger feel and ignition force. -
Recoil Springs (13lb, 15lb)
Specific to Glock 19 / 19X / 45 / 47 Gen 5 only. compact slides use a different recoil system than full-size. -
25% Extra Power Trigger Return Spring
Fits most Glock Gen 5 models. Improves reset feel. -
Reduced Power Safety Plunger Spring
Fits most Glock Gen 5 models. Smooths the trigger press without affecting safety.
From the Forge Files
On these guns:
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15lb recoil spring for hotter ammo or carry setups
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13lb recoil spring for range ammo and faster shooting
Pair it with a 4.5lb striker spring and you’ve got a smooth, predictable setup.
For striker springs:
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4.5lb is our go-to — best balance of feel and reliability
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6lb if you want maximum ignition reliability
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4lb only when running consistent ammo with softer primers
Forge Files — Real Data, Not Opinions
We don’t guess and we don’t hype. The Forge Files are IronKells’ testing library: measured pull weights, connector angles, striker springs, plunger spring combinations, and real-world ignition data using common carry loads. Click the Forge Files link on this page for step-by-step build sheets, load-specific notes, and the test logs we ran on Gen5 frames. If you need advice please take a look at our FORGE FILES!!
Here are relevant options to get you started:
⚠ Glock Disclaimer
IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by Glock, Inc. or Glock Ges.m.b.H.
All references to GLOCK® are used solely to identify firearm models, parts compatibility, and fitment information for customers. Glock is a federally registered trademark of Glock, Inc. and Glock Ges.m.b.H.
Any product sold on this site referencing Glock is aftermarket, not OEM, and is not manufactured by Glock. Glock does not warranty, authorize, or guarantee the performance, safety, or reliability of any third-party components or modifications.
Firearm parts should be installed by a qualified armorer or gunsmith. Improper installation, modification, or use of aftermarket components may affect firearm safety, reliability, and void manufacturer warranties. By purchasing and installing third-party parts, the buyer assumes all responsibility for safe handling, installation, function testing, and use of their firearm and accessories.