Ruger MK IV
- Will NOT fit MKI, MKII, or MKIII Pistols
- WILL NOT fit MKIV 22/45
- Grip screws should be torqued to 13-15 inch lbs. Blue Loctite is suggested on the threads. A quality correct fitting 3/32" hex / Allen or slot driver is a must!
- MKII grip screws will work in this model firearm