Factory Ruger Bolt Stop Release Thumbpiece Blued Mark 2 3 MK II III

Factory RUGER Bolt Stop Plunger Mark 2 3 MK II III MKII MKIII

Factory RUGER Bolt Stop Plunger Spring Mark 2 3 MK II III MKII MKIII MK2 MK3

Bolt Racker Handle for Ruger Mark 3 & 4 OR Mark 1 & 2 (Mk III & IV OR Mk I & II)

Factory RUGER Sear Spring Stop Pin Mark 1 2 3 MK I II III (Standard Frames)

NEW RUGER Bolt Stop Pivot Pin SS Mark MK 1 2 3 I II III MKI MKII & 22/45 *B11

Factory RUGER Stainless Bolt Stop Latch Mark 2 3 Pistol MK II III

Factory Ruger Mark IV Target Bolt Stop Thumb Piece Release MK 4 Target