Virtue Clock 66 Paintball Chronograph - Black CO2 Magazines Compatible with most HPA (Compressed

Compatible with most HPA (Compressed Air) tanks regardless of brand

From there

Compatible with most other M4 AEG Magazines

now in a variety of styles to complement an array of production CS1 Paintball Markers

Virtue Clock 66 Paintball Chronograph - Black CO2 Magazines Compatible with most HPA (CompressedThe Clock 66 is the next generation paintball chronograph with a major reliability and performance upgrade. The Clock has become the industry standard for over a decade. Fields, leagues, teams, or players can depend on the Clock 66 to get fast accurate velocity (feet per second), rate of fire (balls per second), as well as key performance data, such as peak bps, peak fps, average fps, and standard deviation of a string to measure the consistency of