I sent a one-piece locking bolt back to T/C for replacement with a two-piece assy. The replacement part I received has the "roller" or cross-pin on the bolt made as part of the bolt. It is an "ear" cast/forged on the side of the bolt half, and is no longer a separate piece. Has this change been out a while, and I missed it? I guess this will be a part of the G-2? I don't know if it's a good thing or not, only time will tell..............Bug.