Description
Bolting a comp or can onto a slim Glock changes how the gun cycles, and the factory single-stack recoil setup often can't keep up. That's the whole reason this True Precision kit exists. It gives you a range of spring weights and a solid guide rod so you can get your Glock 43, 43X, 48, PSA Micro Dagger, or similar 43-based pistol running clean again once you've added a muzzle device or started feeding it different loads.
What the True Precision 43/43X/48 Tuning Kit Actually Does
The kit ships with three distinct spring weights, a 15-pound, a 17-pound, and a 19-pound, so you can slow the slide down or speed it up depending on what you're running. Lighter springs tend to help a compensated gun cycle softer ammo, while a heavier spring calms things down when you're shooting hot loads or running suppressed and dealing with extra backpressure. The 17-pound spring matches the factory rate, which makes it a handy baseline before you start experimenting. Since the factory 43X and 48 springs are borrowed from the smaller 43, a lot of folks find these guns are a touch undersprung to begin with, so having options on hand solves real-world cycling headaches.
Springs and Guide Rod Built to Take a Beating
Every spring is wound from high-strength chrome-silicon wire and rated for more than 20,000 compressions, so they hold their tension far longer than ordinary music-wire springs. The kit also includes a billet-machined stainless steel guide rod that replaces the flexy factory piece and gives your recoil system a rigid, durable foundation.
Quick Swaps at the Bench
The non-captured guide rod design is the part range folks appreciate most. Because the spring isn't captured, you can pull one weight and drop in another in seconds, no special tools or field-stripping gymnastics required. Fewer captured parts also means fewer points of failure, which is exactly what you want out of a carry or competition gun. Grab a few boxes of your usual ammo, run a couple of springs, and let the target tell you which one your setup likes best.
Key Specifications
- Manufacturer: True Precision
- Manufacturer Part Number: GLK43STK
- UPC: 719104544227
- Model: Recoil Spring Tuning Kit
- Product Type: Recoil Spring Kit
- Fitment: Glock 43, 43X, 48, PSA Micro Dagger, and similar 43-based platforms
- Spring Weights Included: 15 lb, 17 lb, 19 lb
- Spring Material: High-strength chrome-silicon wire
- Rated Durability: 20,000+ compressions per spring
- Guide Rod: Billet-machined stainless steel, non-captured
- Intended Use: Compensated, suppressed, or specialized ammo setups
- Color: Black
What’s Included
- 15 lb recoil spring
- 17 lb recoil spring
- 19 lb recoil spring
- Billet-machined stainless steel non-captured guide rod
Frequently Asked Questions
Which spring weight should I run in my compensated Glock 43X?
It depends on your comp and your ammo. A lighter spring like the 15-pound often helps a compensated gun cycle softer or lower-power range ammo, while the 19-pound tends to work better with hotter loads or when you're running suppressed. The 17-pound matches the factory rate, so start there and adjust based on how your gun cycles at the range.
Does the True Precision kit include a guide rod or just the springs?
It includes both. You get all three springs plus a billet-machined stainless steel non-captured guide rod that replaces the flexier factory component. The non-captured design is what lets you swap spring weights quickly without special tools.
Will this fit a PSA Micro Dagger or other 43-based clones?
Yes. The kit is designed for the Glock 43, 43X, and 48, as well as the PSA Micro Dagger and other similar sub-compact 43-based platforms. If your pistol uses a single-spring 43-style recoil setup, this kit is built to drop right in.
How long do the springs last?
Each spring is wound from high-strength chrome-silicon wire and rated for more than 20,000 compressions. That's a big step up from ordinary music-wire springs, which lose tension much faster. In practice you'll get a long service life before any spring needs replacing.





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