i am trying to install a ff handguard with an armourers wrench and brownings action block and, here is the kicker, no vise. i figure i could lay the block down and put it under a 2x4 or this wooden 2-step box in my garage. i know. well since i now realize this isnt going to work, i still have a problem. when i put the upper into the block, i also put the bolt carrier replacement gadget (that comes with the block) in the place of the bolt carrier, then shut the ejection port cover. now that i am going to put everything back together the way it was before UPS showed up today, i cant get the brownings bolt carrier replacement gadget back out of the upper, and the ejection port cover is closed, and i dont know how to open it. i blame everybody but myself, but am open to suggestions at this point.