The Umarex NitroAir system is an idea the sport shooting world has been waiting for. PCP airgunning is the best way to shoot a pellet rifle, but without a way to fill it, they can be useless. Even the best airgun 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 for use with your Gauntlet or similar air rilfe. Handy as a backup or for small game hunts in the field. Without a pump, without a compressor, you are back in the game. The Umarex Airguns N2 Adapter has M16x1.5 threads on the nitrogen end and 5/8-18 on the regulator end.