The front sight shouldn't be too much of a problem and is usually held on by a bent tenon. It is replaced by a new one and this my be an opportunity to replace that sight with a Hi Viz Fibre optic front sight. Any good Gunsmith can replace it. The only problem might be getting what's left of the old front sight, out.
As has been noted, Auto Ordnance quality before Kahr acquired them is quite variable, but for $200 the risk is certainly lower. Have a good Gunsmith inspect it with a thorough field strip. Test Fire if possible.