1. For the Beta(BG1605W068A), It seems not to be defective. BETA must be used with Plunger.
Please let me know if the BETA still does not work properly with Plunger. Sorry that we haven’t make clear on this detail. The main problem is the Beta is not working. Because after we press the trigger, normally when we release the trigger, it will get back to the position but with this defect item. When you release the trigger, the trigger is not come back to the position. It’s stuck.