True Precision Recoil Spring Tuning Kit - Fits Compensated & Suppressed Glock 19 Gen 1-3 - Black - GLK19STK-3 - UPC: 719104544234
Product Description
The True Precision GLK19STK-3 Recoil Spring Tuning Kit is a high-performance guide rod and spring system custom-engineered for Glock 19 (Gen 1–3) pistols, as well as aftermarket Gen 3-compatible frames (such as Polymer80 PF940C, PSA Dagger, and Shadow Systems MR920) running muzzle compensators, suppressors, or lower-impulse target ammunition. Standard factory captured recoil spring assemblies are tuned strictly for uncompensated slides firing standard 115gr–124gr factory ball ammo. When a compensator or suppressor is installed, the redirected gas forces or added muzzle weight often starve the slide of cycling velocity, resulting in failure-to-eject (stovepipe) or failure-to-feed malfunctions. The GLK19STK-3 kit solves this by enabling shooters to fine-tune slide 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 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 setting (offering reduced spring weights such as 13 lb, 15 lb, and 17 lb), the slide is allowed to travel its full rearward stroke under reduced cycling energy, ensuring positive shell extraction and smooth, reliable return-to-battery feeding.
Ideal for competitive shooting, custom Glock build staging, or suppressed tactical setups, the True Precision GLK19STK-3 kit provides armorers and performance shooters with the adjustability required to eliminate extraction hiccups and achieve reliable, flat-shooting cycling dynamics on customized 9mm platforms.
*Armorer Bench Notes & Real-World Staging Guidance:
Platform & Muzzle Device Tuning Matrix:
• Primary Compatibility: Glock 19 Gen 1, Gen 2, and Gen 3 pistols, plus Gen 3-pattern compact frames (PSA Dagger, Polymer80 PF940C, Lone Wolf Freedom Armory) running compensators or suppressors.
• Note: Designed specifically for Gen 1–3 guide rod nose ring dimensions. Requires a recoil spring adapter washer (sold separately) if installed in Gen 4 or Gen 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 captured recoil spring assembly.
3. Assemble the True Precision stainless guide rod with 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 1–3 pistols.
- Includes a heavy-duty stainless steel guide rod 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-3 / Recoil Spring Tuning Kit
- UPC: 719104544234
- Guide Rod Material: Hardened Stainless Steel
- Finish: Black / Natural Stainless
- Spring Type: Calibrated Flat-Wire Recoil Springs
- Platform Fitment: Glock 19 Gen 1-3 & Similar Gen 3 9mm Compact Frames
- Mass: Approx. 0.14 lbs (2.24 oz)
