Action Army AAC-C1 O-Ring Set for Gas Power Chamber

O-rings are the first thing to go on any gas system and the last thing anyone suspects. A chamber that hisses, loses pressure between shots, or reads lower than it did last month is usually asking for seals rather than parts.

This is Action Army’s own set for their own chamber, which saves measuring and guessing at a generic kit. No description is published for it, and Action Army’s public catalogue documents the rifle rather than its component list.

Worth keeping one in the box rather than ordering it the week you need it.

Specifications

Good to know before you buy

Seals first, parts second. Before replacing a chamber, replace what seals it. The cost difference is considerable and the symptom is often the same.

A smear of the right grease on fitting. Dry o-rings tear on assembly, and a torn ring is no better than the one you took out.

No ring count is published. It is listed as a set without saying how many or what sizes, so we cannot tell you either.

This is for the gas power chamber. The teflon ring for an upgraded CO2 chamber is a different part with its own code.

Frequently asked questions

How do I know my chamber needs seals?
It vents when it should hold, loses pressure between shots, or chronos lower than it used to with nothing else changed.

How many rings are in the set?
Not published. The listing says o-ring set and gives no count.

Will generic o-rings do the same job?
Possibly, if you can measure accurately. This is the maker’s own set for their own chamber, which removes the measuring.

Does it fit the CO2 chamber too?
It is listed against the gas power chamber. The upgraded CO2 chamber has its own teflon ring, which we list separately.

Should I buy a spare?
Yes. It is the cheapest part on the rifle and the one most likely to end a game day.