If the front sight is already pre-drilled for the retaining pin it's a simple swap. If not it'll take a little more time but it ain't too hard. If you're not comfortable doing it yourself I know the gunsmiths at The Range do sight installs for a set price. Check their website.
Agreed it ain't hard. I have changed out several since the gunsmith charged me $200 to do one a while back. AnywayI use these guys, they provide the sight and to special tools to do the job. And instructions.
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