Protect your air tank regulator with this set of 2 threaded regulator caps. These rugged regulator caps are essential for protecting the regulator threads of your paintball air tank, from dust, impact, and unexpected falls. Designed with a bold, projectile style look and featuring integrated o-ring storage, it’s a must-have upgrade for serious players. Now available in multiple colors and custom engraved with your name, callsign, team, brand, or personal motto in a clean low-relief finish.

It's produced with ASA polymer, very resistant and perfect for outdoor use (read more about it here and here).