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APS Sealing Gasket (STK-36)
Eliminate frustrating gas leaks and restore maximum shot-to-shot pressure with the genuine APS Sealing Gasket (STK-36). Over repeated skirmishes, factory internal gaskets can harden, dry out, or split under high operating pressure, leading to hissing air loss and sluggish cycle performance.
Moulded from high-density, oil-resistant synthetic rubber, this OEM replacement gasket is precision-formed to deliver an airtight compression seal against internal mating surfaces. It is an indispensable, pocket-sized spare for any player maintaining an APS gas platform or CAM-series system, ensuring your kit stays leak-free and field-ready when you need it most.
Gas efficiency and muzzle velocity consistency rely entirely on the integrity of your internal rubber gaskets. A single hairline crack, flattened lip, or pinched corner on an internal seal can vent entire gas charges, rendering your replica unplayable mid-game. The APS Sealing Gasket (STK-36) provides an authentic, factory-spec solution to cure persistent gas leaks and return your APS gas-powered platforms to peak operating pressure.
Precision Moulded for High-Pressure Retention Unlike generic multi-pack O-rings that lack the exact dimensional lip profiles required by APS valve assemblies, the STK-36 is engineered to exact factory tolerances. Moulded from heavy-duty, flexible synthetic elastomer, it resists the intense thermal shock and cryogenic freezing caused by expanding CO2 and green gas propellants. The compound retains its natural elasticity and structural memory over long storage periods, preventing premature drying, cracking, or blowout extrusion under sudden pressure spikes.
Practical Applications & Real-World Use Cases
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Safe-Zone Leak Repairs: Nothing ruins a skirmish day faster than hearing gas vent from your internal assembly while prepping in the staging area. Keeping a spare STK-36 in your tool kit allows you to perform a five-minute seal swap and get right back to the action.
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Winter & Cold-Weather Maintenance: Cold British weather stiffens aging rubber gaskets, causing micro-leaks that standard silicone oil cannot fix. Swapping in a fresh, supple STK-36 gasket ensures tight, reliable gas retention even when morning temperatures drop.
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Routine Off-Season Servicing: If your gas replica has been packed away through the winter, dry seals can shrink and fail to seat on your first fill. Installing fresh replacement gaskets during your pre-season strip-down guarantees flawless cycling from game one.
Compatibility & Installation Manufactured by APS as a genuine spare part (Part Code: STK-36). Designed for use in APS gas systems and related gas shotgun components (including the CAM-series charging/gas hardware).
(Installation tip: Ensure all mating surfaces are free of debris and lightly grease the gasket with 100% pure silicone oil during assembly to ensure a perfect airtight seal and extend service life.)
| SKU | 616553 |
|---|---|
| Brand | APS |
| Weapon Category | Parts |
Our courier partners deliver from Monday to Friday, excluding Bank Holidays. We will attempt to dispatch all packages within 24 hours, although at peak times this may take slightly longer. Orders with products with two-tone service or Defence Check may take longer to dispatch.
Once the order is dispatched you will get an email with the tracking number and which courier partner it’s going to be delivered via. Any missing/incorrect items need to be reported with 48hrs of signed delivery.
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Faulty Product?! Unfortunately that is part of life but be rest assured we are here to help! Contact one of our friendly staff via phone or email. Stating what the problem is, if we can resolve the problem via phone or email great if not then they will advise how to send it back and what details we require.
The gun will be sprayed 51% in a bright/primary color (we do only blue, green and red currently). The process of two toning currently runs at 2 working days depending on Drying Time, which is effected by Ambient Temperature and Weather. and currently no express delivery is available for this even if you select it at checkout.