Stuff and Things Cam Activated Reset Limiter with 3-Round Cam. With the included 3-Round limiter Cam the user will be forced to extend the release of the trigger after firing 3 rounds. Package Contents: Stuff and Things CARL - Cam Activated Reset Limiter with 3-Round Cam Stuff and Things CARL: CARL Cam Activated Reset Limiter with 3-Round Cam