Description
APS STK-36 Sealing Gasket for Striker (Gas)
This is an APS sealing gasket for a striker, part code STK-36, listed as a gas part. In gas-powered replicas, small seals like this keep gas where it should be as the striker moves, and a hardened, cracked or flattened seal is a common cause of leaks, weak shots and inconsistent power.
Replacing a tired seal with the correct genuine part is one of the simplest and cheapest ways to bring a gas replica back to good working order, which makes this a useful part to have in the spares box.
About the part
APS makes a wide range of replicas and spare parts, and it identifies its parts by code. This gasket is listed under the code STK-36 for the striker. Please use the code, the exploded diagram in your replica’s manual and the product images to confirm it is the part you need, as the name does not list the models it fits.
Fitting
Make sure the replica is completely empty of gas before you start, and that no BBs are loaded. Take out the old gasket carefully without scratching the parts around it, and clean the area before fitting the new one. Lubricate the new gasket lightly with silicone oil and seat it evenly, without twisting or stretching it.
Key features
- Genuine APS replacement part
- Sealing gasket for the striker
- Part code STK-36
- Listed as a gas part
- Helps cure leaks and inconsistent power caused by a worn seal
- Inexpensive spare to keep in the toolbox
Compatibility
Please check your replica’s manual for the part code STK-36 before ordering, as APS parts are often specific to one model.
Spare parts are often specific to one manufacturer, and sometimes to one production version, so please check your replica’s make and model, and compare this part with the one you are replacing, before ordering. If you are unsure, contact us with details of your replica and we will help.
Care and maintenance
Use only silicone-based lubricants on rubber seals and O-rings. Petroleum-based oils and solvents can make rubber swell and break down, which causes leaks.
If you are not confident working on your replica, have the part fitted by an experienced technician. Keep small screws and springs in a tray while you work, and test the replica’s function carefully with no BBs or gas loaded before using it in a game.
Store spare parts in a sealed bag or small box, somewhere cool and dry and away from direct sunlight, so rubber and polymer parts do not dry out or deform before you need them.
Who is it for?
This gasket is for owners of APS gas replicas that use the STK-36 striker gasket and need to replace a worn or damaged seal.
Please note: The replica is not included.









