Pearce Grip Plug Insert for Glock Gen 3, Gen4/5 Pearce Grip Plug Insert for Glock Gen 3, Gen4/5 This unit installs in the bottom rear cavity of the frame utilizing the lanyard hole for retention. Fits model M17, 18, 19, 22, 23, 24, 31, 32, 34, 35,... MSRP: $6.00 Was: Now: $4.99 Choose Options