I have the opportunity to get an FM Detective cheap but I'm a little leary of what I see at the front sight area. It appears that someone in the past has tried to remove or replace the front sight. The current sight is pinned through a front bushing-like cylinder that protrudes from the muzzle end of the slide and fits flush with the slide internally. Both the sight and this bushing-like part move when the slide moves and wiggle around a lot. The bushing cannot be removed unless the whole front sight were to be removed. I checked my real Browning Hi Power and it has the same system. The work looks shoddy and the "bushing" appears to be damaged or at least not professional looking on the inside so I'm concerned. Is the part available for a gunsmith to replace the "bushing" and start over with a new sight? OR could I get a regular HP slide/barrel somewhere and replace the shorty? I have a quality HP but this is the first Argentine Detective I have seen. It is heavy and beastly and robust looking and I think I like it and, as with a 1911, could do damage if thrown but I would like to shoot it and be able to hit something. I just dont know much about them and need advice.