Elevate your airsoft game with the PTS MEC R-Type Piston Head. Engineered with a durable brass construction and an integrated O-ring, this piston head ensures optimal air seal and performance. Specifically crafted for TM G17 Gen4 and G19 models, it promises reliability and enhanced shooting accuracy. Available in a sleek brass finish, this piston head is a must-have upgrade for any serious airsoft enthusiast.