True Precision Recoil Spring Tuning Kit - Fits Compensated & Suppressed Glock 19 Gen 4/5/V - Black - GLK19STK-5V - UPC: 719104544241
Product Description
The True Precision GLK19STK-5V Recoil Spring Tuning Kit is a high-performance guide rod and spring assembly custom-engineered for Glock 19 (Gen 4 and Gen 5) pistols, as well as Gen 4/5-compatible models (such as Glock 19X, G45, and G49) running muzzle compensators, suppressors, or lower-impulse target ammunition. Factory dual-nested captured recoil assemblies are tuned strictly for uncompensated slides firing standard 115gr–124gr factory ball ammo. When a barrel compensator or suppressor is added, the redirected high-pressure gas or additional muzzle weight starves the slide of cycling momentum, frequently leading to failure-to-eject (stovepipe) or failure-to-feed malfunctions. The GLK19STK-5V kit resolves this issue by enabling armorers and shooters to fine-tune recoil spring resistance to match their exact muzzle device and ammo combination.
At the core of the kit is a non-captured, heavy-duty stainless steel guide rod paired with an adapter ring contoured for Gen 4 and Gen 5 slide nose ring openings, along with a selection of premium, heat-treated flat-wire recoil springs calibrated to exact tolerances. By stepping down recoil spring weight below the standard 18 lb factory rating (offering reduced spring weights such as 13 lb, 15 lb, and 17 lb), the slide is allowed to achieve a full rearward stroke under reduced cycling energy, ensuring clean shell ejection and smooth, reliable return-to-battery feeding.
Ideal for competitive shooting, custom Glock build staging, or suppressed tactical setups, the True Precision GLK19STK-5V kit provides the adjustability needed to eliminate extraction hiccups and achieve flat-shooting cycling dynamics on customized 9mm Glock platforms.
*Armorer Bench Notes & Real-World Staging Guidance:
Platform & Muzzle Device Tuning Matrix:
• Primary Compatibility: Glock 19 Gen 4, Glock 19 Gen 5, Glock 19X, Glock 45, and Glock 49 running muzzle compensators or suppressors.
• Nose Ring Adapter: Includes the required Gen 4/5 stainless adapter ring that fills the larger guide rod nose channel in Gen 4/5 slides.
Tuning & Installation Steps:
1. Unload host firearm, clear chamber, remove magazine, and field strip the slide from the frame.
2. Remove the factory dual-spring captured recoil assembly.
3. Assemble the True Precision stainless guide rod with the Gen 4/5 adapter ring and the desired test spring (start with a mid-weight spring when staging a compensated slide with standard 115gr/124gr range ammo).
4. Compress and seat the guide rod assembly into the slide nose ring and lower barrel lug crescent notch.
5. Reassemble firearm and perform live-fire testing: If the slide fails to lock back on an empty mag or stovepipes, step down to a lighter spring weight. If muzzle dip is excessive or the slide slams rearward, step up to a heavier spring weight.
Key Features
- Precision-engineered recoil spring tuning system for compensated or suppressed Glock 19 Gen 4 and Gen 5 pistols.
- Includes a heavy-duty stainless steel guide rod, Gen 4/5 adapter ring, and multiple calibrated flat-wire recoil springs.
- Allows fine-tuning of slide cycling velocity to eliminate failures to feed, extract, or lock back.
- Non-captured guide rod design enables fast, tool-less spring weight changes at the bench or range.
- Premium spring steel construction offers exceptional resistance to spring set fatigue under high heat cycles.
- Ideal for tuning performance setups running barrel compensators, suppressors, or light competition loads.
- Made in the USA by True Precision.
Product Specifications
- Brand: True Precision
- MPN / Model: GLK19STK-5V / Recoil Spring Tuning Kit
- UPC: 719104544241
- Guide Rod Material: Hardened Stainless Steel
- Finish: Black / Natural Stainless
- Spring Type: Calibrated Flat-Wire Recoil Springs
- Platform Fitment: Glock 19 Gen 4 / Gen 5 / 19X / G45 / G49
- Mass: Approx. 0.15 lbs (2.40 oz)
