This high-performance gas ram spring for air rifles delivers impressive power with 30-34J of energy output. Precision-engineered using quality materials including steel, aluminum, rubber, and plastic components, this replacement gas ram is specifically designed for compatibility with GAMO G-Magnum 1250 and Grizzly 1250 models. The black-finished steel construction ensures durability and reliable operation. This gas ram may also fit other GAMO models with 30mm internal diameter - please verify compatibility before purchase. The kit includes the main gas ram unit along with necessary mounting hardware. This performance upgrade component allows you to maintain or restore your air rifle's power and shooting characteristics. Professional installation is recommended for optimal results and safety. The gas ram design offers consistent power output and smooth cocking action compared to traditional metal springs.