Weight 0.1 lbs

Hunter 220 and Shadow 1000 rifles. (Will also fit Big Cat 07-08 models-Barrel side o-ring), Hunter 440, Hunter Elite, Hunter Pro, Hunter Sport, Maxima, Shadow Sport MOdels – Barrel side o-ring, Varmint Hunter, Viper

Replacement seal for Gamo break barrel air rifle breech for keeping pressure concentrated behind the pellet. Large Size.