Here’s where the motive power of a precharged pneumatic airgun is stored. The usual pressure used is around 3000 p.s. i. or 210 bar, but this can vary, so always refer to your airgun’s instructions. Again, dirt and grit are your enemies, so keep all charging connections spotlessly clean at all times. Above all, follow ALL safety guidelines and NEVER, EVER charge your airgun with anything other than divers’ quality compressed air. There is NO variation on this rule.