Tightening a front sight on a Browning Hi-Power?

[London22]

I just bought a used Browning Hi-Power and the front sight is a little loose. It shifts from right to left if you push on it. It's a replacement sight (done by somebody else) and not the original sight. Can anybody tell me how I can tighten it so that it stays in place.

Thanks.

 

[Dsiwy]

Take a centre punch and stake the front sight in " One stake on both sides of the sight" Do not stake the slide!