Sigma .40 cal. sights replacement

[p5200]

Does anyone know if these sights will fit this gun and do they have to be installed by a smith? Thanks!

Trijicon SA22 Smith & Wesson Sigma .40 3 Dot Front & Rear Night Sight Set - Special Order FREE S&H SA22, SA22Y. Trijicon NightSights Tritium & Fiber Optic Night Sights, Trijicon Tritium & Fiber Optic

 

[OKFC05]

Well, the thing about Trijicon sights is that if you start pounding on them to drive them into the dovetails, you can break the glass holding the tritium. There goes $100 bucks.
So I would suggest it is prudent to use your sight pusher or hire somebody who has one and knows how to use it.

 

[p5200]

The front sight on the Sigma doesn't use use a dove tail but is just plastic which seems to be melted and flattened out inside the slide to hold it . I wonder if the replacement front sight requires a dove tail or what? I can't tell by the picture. Thanks! I'd rather get some cheaper ones if I can find some. someone re glued the front sight on that's why I would like to get another set.

 

[shawn mccarver]

I suspect it installs the same way as a Glock - threaded bolt from the bottom, through the hole in the slide, up into the body of the sight, held in place using Loc-tite.

 

[mlk18]

I put night sights on my old SW9VE and indeed front sight installation was identical to Glock. Remove plastic sight, new metal sight snaps into hole, put a small amount of loc-tite on a small screw and insert through the bottom of the slide. Believe it or not it was the rear sight I had issues with. Was very loose and could be pushed out the slide without much pressure. I ended up having my armorer drill a hole through it, thread/tap it and insert a set screw. I believe the sights were old stock meprolights.

 

[p5200]

Sounds good is the front sight pretty close to the same height as the stock sight? Thanks for the info.