The Umarex NitroAir system is an idea the airgun world has been waiting for. PCP airgunning is the best way to shoot a pellet rifle, but without a way to fill it, they are useless. Even the best of compressors can fail and usually at the worst possible time. What if you had a way to bypass the downtime for a quick fix? With the N2 Adapter, you can easily thread on a NitroAir cartridge into your Gauntlet or similar air rilfe. Without a pump, without a compressor, you are back in the game.