This is a Hogue Revolver Grip known as the Rubber Grip, model 85000.
The Hogue name is practically synonymous with fine handgun grips. That's where it all started decades ago when a crafty LAPD officer named Guy Hogue took it upon himself to make a better wood grip for his duty revolver. Little did Guy know that his bright idea for a better grip would lay the foundation for today's Hogue" Inc. Guy's spirit lives on in a dazzling array of materials" styles and colors for your favorite pistol. This is a rubber grip with finger grooves for the Ruger P85-91.
Features:
Black finish
Rubber grip with finger grooves
Fits Ruger P85/89/90/91