Description
| Glock OEM Maritime Spring Cups – Set of 2 | |
|---|---|
| Price | $7.99 |
| Manufacturer | Glock OEM |
| Part Number | SP33775 |
| Compatibility | All Glock models Gen 1-5 |
| Material | Polymer |
| Quantity | Set of 2 |
| Function | Replaces standard cups; allows firing pin to strike with water in the channel |
| Installation | Requires slide disassembly and firing pin removal |
Yes, you should buy these Glock maritime spring cups if you need your pistol to fire reliably after being submerged. For $7.99, this OEM upgrade is cheap insurance against a critical failure caused by water in the firing pin channel. It’s a simple part that solves a specific, potentially life-saving problem.
Who These Glock Maritime Spring Cups Are For
Maritime/Law Enforcement Personnel: Anyone whose duty might involve a waterborne incident needs this upgrade. It’s standard on Glock’s “Maritime” models for a reason.
Serious Outdoor Enthusiasts: Hunters, fishermen, and hikers who operate around water and mud. A dunked gun shouldn’t become a paperweight.
Preppers & Defensive Shooters: If you’re preparing for worst-case scenarios, a $7.99 part that guarantees a wet gun will fire is a no-brainer.
Key Features & Benefits
- OEM Reliability: These are genuine Glock parts (SP33775). You get the exact same polymer spring cups installed at the Glock factory on their maritime models, ensuring perfect fit and function.
- Universal Compatibility: The set works in all Glock models, from Gen 1 through Gen 5. One part number upgrades your entire fleet.
- Critical Function: The cup’s design allows water to drain from the firing pin channel. A standard cup can trap water, creating hydraulic pressure that cushions the firing pin strike and causes a misfire.
- Simple Upgrade: Installation requires basic slide disassembly, but it’s a straightforward swap. You’re replacing one polymer cup with another—no gunsmithing needed.
Glock Maritime Spring Cups vs. The Competition
| Feature | Glock OEM Maritime Spring Cups | Standard OEM Spring Cups | Aftermarket “Enhanced” Cups |
|---|---|---|---|
| Price | $7.99 | ~$5 (if sold separately) | $10 – $15 |
| Water Drainage | ✓ Yes, primary function | ✗ No, traps water | ✓ Sometimes advertised |
| Origin | Glock Factory (SP33775) | Glock Factory | Third-Party Manufacturer |
| Best For | Reliability in wet conditions | Standard range use | Often unclear benefit |
Pros & Cons
Pros:
✓ Proven OEM Solution: This isn’t a theory; it’s the factory fix for a known issue.
✓ Extremely Affordable: At under $8, it’s one of the cheapest meaningful upgrades you can make.
✓ No Downsides: They function identically to standard cups in dry conditions. You gain capability without losing anything.
Cons:
✗ Requires Installation: You must disassemble your slide. If you’re not comfortable with that, you’ll need a tool or a gunsmith.
✗ Single Purpose: If you never expose your gun to water, you don’t need them. They won’t make your trigger better or your gun more accurate.
Frequently Asked Questions
Do I need to replace both spring cups?
Yes. Always replace them as a matched set (Part SP33775). Using one maritime and one standard cup could compromise the drainage function.
Will these work with aftermarket firing pins or connectors?
Yes. They interface with the OEM firing pin spring. As long as your aftermarket parts use the standard spring, these cups will work. For other internal upgrades, check out our Glock Switches and triggers.
How often should I replace them?
Inspect them when you clean your firing pin channel. Glock polymer is tough, but replace them if you see any cracks or deformation. They typically last for tens of thousands of rounds.
Can I install these myself?
If you can field-strip your Glock and remove the firing pin assembly, you can do it. You’ll need a punch or small tool to depress the spring cup during reassembly. It takes 5 minutes.
Get Your Set Today
Don’t wait for a misfire when it counts. For less than the cost of a box of ammo, you can ensure your Glock will go bang even when it’s wet. These are the exact parts used by professionals worldwide.
✓ Genuine Glock OEM Parts ✓ In Stock ✓ Ships Fast
Add the Maritime Spring Cups to your cart. While you’re here, browse our full selection of Glock Accessories to complete your build.
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