My father in law lost a few pieces of his beretta 21a 22lr pistol and I volunteered to fix it. I ordered the parts I thought he was missing(recoil spring, recoil spring plunger, and a grip screw). The parts came in today from brownells and I put them in and I am missing something to do with the trigger, hammer and safety. On the right side of the pistol under the grip the bar that runs back from the trigger to the hammer below there is a spring I am not sure what to connect it to and the safety flops back and forth. I tried searching on youtube for a video and the beretta manual for the model 21 does not cover anything besides a basic field strip on the pistol. Any links, pictures, or information you can provide will be greatly appreciated