Try Protocall design. I don't know if he manufactures any of the dovetail front sights, but he does do a lot of other S&W front sights so it would be worth a call or e-mail. Below is some contact information copied from the Brian Enos site.
You can contact us by sending a PM to Toolguy or to Protocall Design, or to thock.
Phone: 913-422-8966 (U.S. only) or 913-730-0554 (International). Please, do NOT call at the first number if you are outside the U.S.
e-mail:
[email protected] or
[email protected]
To place an order, you can do one of six things:
Send an e-mail to
[email protected].
Send an e-mail to
[email protected] (back-up e-mail address).
Call us.
Send a PM to Toolguy.
Send a PM to Protocall Design (slower response than sending to Toolguy).
Send a PM to thock.
Caling or sending an e-mail is the fastest way to get a response.
Front sights
Sights are Patridge, and .100 wide, unless you specifically request .125 wide. You can determine whether you need a pin-on sight or a classic sight by looking under the sight at the muzzle. If you can see a hole under the sight, just above the bore, you have a classic sight. For photos and more information, see this post.
Additional fibers are available for an additional cost, in case you want a choice of colors, or if your fiber breaks. Fibers sold with the sight will not be charged additional shipping, but fibers ordered separately will be charged shipping.
Heights:
.200 pin-on, only
.250 pin-on or classic
.300 pin-on or classic
Fiber optic $45 + shipping
Plain front sights $40 + shipping
Additional fibers, per 2" length $1 each + $3 shipping for entire fiber order