First time on the forum. Working on a Walther LG51. Thorough cleaning, compression tube prep, new seals. The anti-bear trap slide seems to have the "V" tip broken off. Is this part necessary for correct function? The gun cocks fine (the piston stem locks into the trigger mechanism), but the trigger cannot be pulled fully to disengage the sear to release the piston. The part that blocks the trigger (don't know the name since all parts diagrams I can locate are in German) can be pivoted forward slightly with a jeweler screwdriver to allow complete trigger travel to release the piston. But something needs to move the trigger block automatically (anti-bear trap slide?). Silly question: where could a person locate a new anti-bear trap slide? Thanks much for your help. Don