*** Please note that we will be updating our website on Tuesday, May 21st from 8 AM EST to 12 PM EST. ***

*** Checkout will be unavailable during this time. ***

This Ruger manufactured front sight screw is for the Mark I semi-auto target pistol which is equipped with an adjustable rear sight and is in very good condition with light slot wear. (file photo)

Note: Ruger Mark I semi-auto target pistols with the following serial numbers have been observed with this part:

5 1/2" Barrel: 10-90939

Request this Product