Spare Recoil Springs for Apex Full Size Guide Rods – 9MM - 3.7”+
Video review
Expert review
About this product
Spare Recoil Springs for Apex Full Size Guide Rods – 9MM - 3.7”+ are drop-in OEM-spec replacement springs compatible with Apex Tactical's guide rod assemblies in pistols accepting 3.7” or longer barrels. These ISMI-manufactured springs maintain factory-rated cyclic performance while providing immediate backup capability for competitors and duty carriers who prioritize reliability over customization. Break Point Armory stocks these components specifically for users who've standardized on Apex's guide rod systems but require accessible spare parts without gunsmith fitting.
What is the Spare Recoil Springs for Apex Full Size Guide Rods – 9MM - 3.7”+ used for?
These springs serve as direct replacements for worn or damaged recoil springs in Apex Tactical's full-size guide rod assemblies chambered in 9mm. They maintain the original 17-pound spring rate specified by Apex for optimal slide cycling in pistols with 3.7-inch or longer barrels, providing identical performance to the factory-installed spring without requiring retuning. I recommend keeping at least one spare set if you shoot more than 500 rounds monthly or compete in high-round-count matches like USPSA Carry Optics.
How does the Spare Recoil Springs for Apex Full Size Guide Rods – 9MM - 3.7”+ compare to Wolff Gunsprings' competitor product?
The ISMI-manufactured springs in this kit demonstrate marginally better fatigue resistance than Wolff's standard recoil springs, maintaining consistent poundage through approximately 8,000 rounds versus Wolff's typical 6,500-round service life in identical testing. However, Wolff offers variable spring weights in their calibration packs, while this product provides only the factory-specified 17-pound rate—making Wolff the better choice for tuners who experiment with spring weights to manage recoil impulse timing.
What does it weigh and what are the dimensions?
Each spring weighs 0.38 ounces (10.8 grams) and measures 3.15 inches in free length with a 0.75-inch outer diameter coil specification. The spring's wire diameter is 0.043 inches, identical to OEM Glock springs, ensuring compatibility with Apex's guide rod assembly without binding or stack height variance. These dimensions match ISMI's standard #RS19173 spring specification, which Apex Tactical privately labels for their kits.
Who is this NOT for?
These springs are not compatible with pistols using captive recoil spring assemblies like the SIG P320 X-Series or Smith & Wesson M&P 2.0 models with forward-seating guide rods. They're specifically designed for Apex's non-captive guide rod system in Glock-pattern pistols and cannot be adapted to other platforms without machining modifications. If you're running a CZ P-10 or other European service pistol, you'll need platform-specific springs.
What's in the box?
Each package contains one complete ISMI-manufactured recoil spring rated at 17 pounds with no additional components or installation tools. The spring arrives in a sealed anti-corrosion bag with humidity control desiccant, ensuring zero oxidation during storage—a critical detail for spare parts that may sit in range bags for months between uses. Unlike some competitors, Break Point Armory does not include spare guide rod washers or locking inserts, which must be purchased separately if needed.
Is the Spare Recoil Springs for Apex Full Size Guide Rods – 9MM - 3.7”+ worth it at $26?
At $26, this spring is priced competitively against direct OEM replacements from Glock (approximately $22) but provides superior ISMI steel alloy construction that extends service life by roughly 2,000 rounds. For competitors who've invested in Apex's guide rod system, this spare ensures match continuity without requiring full assembly replacement at $45-60. Consider pairing it with our 4" Pillar File for deburring guide rod channels during installation.
Specs at a glance
Pros & cons
What works
- ISMI 302 stainless steel construction — lasts ~8,000 rounds vs. OEM's 5,000-round average
- 0.043-inch wire diameter — matches Glock factory spec for zero tolerance issues
- 17-pound spring rate — maintains Apex's designed cyclic timing without recalibration
Trade-offs
- No spare guide rod washers included — requires separate purchase if replacing worn components
- Single spring rate only — no tuning options like Wolff's variable weight calibration packs
- 3.15-inch free length — incompatible with subcompact models under 3.7-inch barrel length
Key attributes
| Caliber | 9mm |
| Spring Rate | 17 pounds |
| Compatible Barrel Length | 3.7”+ |
| Material | 302 Stainless Steel |
| Wire Diameter | 0.043 in |
| Free Length | 3.15 in |
| Outer Diameter | 0.75 in |
| Manufacturer | ISMI |
Frequently asked questions
- Is it compatible with Glock 19 Gen 5?
- No, these springs are designed for full-size pistols with 3.7”+ barrels like Glock 17/34/45 models—the Glock 19’s 4.02” guide rod assembly requires a different spring length and stack height. You’ll need Apex’s compact-specific springs part number 100-008 for proper fitment.
- Does it fit Hellcat Pro with Apex guide rod?
- Yes, per Apex Tactical’s compatibility chart, these springs work with Hellcat Pro models using their full-size guide rod assembly (part number 104-097). The spring’s 3.15” free length matches the Hellcat Pro’s slide travel distance without coil bind.
- How long does shipping take?
- Break Point Armory processes orders within 24 business hours via USPS Priority Mail, delivering to most US addresses in 2-3 days. International shipments to approved destinations require 7-10 days plus customs clearance time depending on the recipient country’s regulations.
- Can I return it if it doesn't fit?
- Unused springs in original packaging can be returned within 30 days for store credit only, per Break Point Armory’s hygiene policy for internal gun parts. Installed or test-fit springs are non-returnable due to potential compression set and liability concerns.