1 1/4"-12 Breech Lock Update Kit. Convert your green, red or blue press to allow use Lee's Breech Lock quick-change bushing feature.

Kit includes:

  • 1 1/4"-12 breech lock adapter
  • Spline drive lock-ring eliminator
  • Lock-ring wrench

Compatible with the following presses:

  • Lee Precision Classic Cast
  • Hornady Iron
  • Hornady Classic / Lock-N-Load
  • RCBS Rock Chucker Supreme
  • Redding Big Boss
  • Redding 700 Ultramag
  • ..and more (verify your removable press bushing/adapter size is 1 1/4"-12)