Seal pack (work in progress)

In this instruction, I'll show how to replace seals in CP2 airgun.

This is instruction for an item sold by me on eBay

Orings or CO2 seal for CP2

Set of seals (orings or CO2 cartridge seal) to replace damages seals in CP2 airgun.

Part list and orings dimmension

Universal Airgun O-Ring Set

Kit including all sealing o-rings used in the airgun. The only difference between 4,5mm (.177) and 5,5mm (.22) calibers is the o-ring located in the barrel at the loading port. Both caliber-specific o-rings are included, making this a universal set.

From left to right:

1x o-ring between the piercing pin and valve body (part 33, size 5x2)
2x transfer port o-rings (part 26, size 6x2)
4x o-rings between the barrel and the block (part 4, size 8x1)
2x 4,5mm (.177) + 2x 5,5mm (.22) barrel o-rings at the loading port (part 5, size 4,5x1,5 or 5,5x1,5)
1x o-ring between the two halves of the valve body (part 35, size 14x2)

CO2 Capsule Seal - Rubber (NBR)

Seal between CO2 capsule and piercing pin, made from NBR rubber. This one is very similar to the original factory seal (part 31).

CO2 Capsule Seal – Delrin (POM-C)
Seal between the CO2 capsule and the piercing pin, made from Delrin (POM-C) engineering plastic. This is a hard plastic material commonly used for sealing applications - the same material is used for the valve seal in this airgun.

This seal was designed to offer improved durability and longer service life when operating under high pressure. The original rubber seal tends to deform over time; this is not an issue with the harder Delrin seal.

This option is especially recommended for use with CO2/PCP adapter, where operating pressure may be higher than standard CO2 pressure.