Description
APS Co2 Magazine Base Cap (AC010)
The APS CO2 Magazine Base Cap, code AC010, is a genuine replacement base cap for APS CO2 pistol magazines. It is the screw-in cap at the bottom of the magazine that closes the compartment holding the CO2 capsule, and it is what you tighten to pierce and seal the capsule. A damaged, worn or lost cap leaves a magazine unusable, so a spare is a sensible addition to any APS owner’s kit.
APS is a long-established airsoft manufacturer with a large range of CO2 pistols. This genuine part suits owners who need to replace a cap that has been lost, cross-threaded or worn, and techs keeping spares in stock.
Design
The product photo shows a round, brass-coloured cap with a threaded body and a slot across the base, so it can be tightened with a coin, screwdriver or similar tool. Using a tool rather than fingers alone makes it easier to apply even pressure when seating a capsule.
Using it
Insert a fresh CO2 capsule into the magazine as your manual describes, then screw the cap in steadily until the capsule is pierced and sealed. Do not overtighten, and do not force the cap if it does not start cleanly, as cross-threading can damage both the cap and the magazine. Before removing the cap, always make sure the capsule is empty.
Key features
- Genuine APS replacement CO2 magazine base cap
- Code AC010
- Threaded screw-in design
- Slotted base for tightening with a coin or screwdriver
- Brass-coloured finish (as pictured)
- Revives magazines with lost or damaged caps
Compatibility
Designed for APS CO2 pistol magazines that use this base cap. APS makes magazines for several pistol families, so compare your existing cap or check your magazine’s parts list before ordering.
Care and maintenance
Keep the threads clean and free of grit and apply a tiny amount of silicone oil occasionally so the cap turns smoothly. Check the base O-ring when changing capsules and replace it if it is flattened or nicked. Never remove the cap from a magazine that still contains gas.
Who is it for?
This cap suits APS CO2 pistol owners who need to replace a lost or damaged magazine base cap, and techs who keep genuine spares to hand.









