contender
Ruger Guru
Welcome to the Forum!
You are correct in that a XR3 or XR3-RED gripframe will work. If you'd like to get the correct one for that vintage,,, post the serial number,,, or maybe most of it & we can help be a little more accurate. (example; 1234XX or 20-123XX)
Also,,, if you can't find what you seek, there is a way to modify a NM grip frame with a trigger return spring block addition to allow the use of a NM grip frame under an OM.
You are correct in that a XR3 or XR3-RED gripframe will work. If you'd like to get the correct one for that vintage,,, post the serial number,,, or maybe most of it & we can help be a little more accurate. (example; 1234XX or 20-123XX)
Also,,, if you can't find what you seek, there is a way to modify a NM grip frame with a trigger return spring block addition to allow the use of a NM grip frame under an OM.