I updated the sights on my modified Springfield from the factory Bomar target-style sights, to a more rugged fixed plain black rear sight and a front red FO. Sent my slide to John @ Harrison Custom and he installed the Extreme Service rear sight and a matching Dawson FO front. The service was fast and professional, I sent the slide last Saturday and got it back today, 1 week later. Not a mark on the slide.

https://shop.harrisoncustom.com/hd-0...ice-rear-sight
https://shop.harrisoncustom.com/fibe...gfield-dwesson

These sights are a nice upgrade. The rear sight is built like a tank, and the FO front really pops in contrast to the black rear. Look forward to trying these out at the range.