FYI, the pull trigger will also work as a release trigger. If it has a pull trigger, with the gun OPEN set the trigger, close the gun and shoot it like you would any gun with a release. If you do not believe me, TRY IT. Do not let anyone but the Merlyn or the boys touch your trigger. Best kept secret in trap guns are the Alfermann. By far the best single barrel on the market and absolutely no one better to deal with then Gary, Larry and Merlyn.