
Availability: In Stock
The Lee 90900 Auto Breech Lock Pro is a progressive reloading press built to deliver serious functionality without the serious price tag. If you've been holding off on progressive automation because of cost, this press changes the equation. It combines the speed and efficiency of a progressive press with a modular design that lets you control how much or how little automation you want to use—no complicated adjustments needed to switch between modes.
Setup and cartridge changes are refreshingly straightforward. The Breech Lock quick-change system works in all four press positions, and you can swap calibers in seconds without fussing with die adjustments each time. Large and small priming arms are both included, and the press handles primer disposal automatically, sending spent primers down a built-in tube rather than cluttering your bench. If you want to load straight through without breaking rhythm, you can; if you prefer to load one station at a time, the press adapts to your workflow.
Lee includes a lot of what other manufacturers charge extra for: the ergonomic wood-grip roller handle, hex wrenches for caliber changes with a built-in storage rack, and all four Breech Lock bushings. You'll need to make the initial die adjustment into your bushings once per caliber setup, but after that, the Breech Lock system keeps everything indexed and ready to go. Note that a shell plate (sold separately) is required to operate the press.
Whether you're new to reloading or you've been doing it for years, the Auto Breech Lock Pro delivers progressive-press speed and flexibility at a price that makes sense. Pair it with a set of Lee dies and a compatible shell plate, and you're ready to start loading.
| Manufacturer | Lee Precision |
| Model | 90900 Auto Breech Lock Pro |
| Press Type | Progressive Reloading Press |
| Breech Lock Bushings Included | 4 |
| Priming Arms | Large and small included |
| Handle | Wood-grip roller handle |
| Primer Disposal | Automatic, through-ram with built-in tube |
| Shell Plate | Sold separately (required) |
Yes. You'll need a set of Lee dies for your caliber and a compatible shell plate (sold separately). Once you have those, along with the press, you're ready to begin reloading. The press includes the Breech Lock bushings, priming arms, and roller handle—you won't need to buy those separately.
Cartridge changeover takes seconds. The Breech Lock system allows instant die changes in all four positions without any adjustments. After you set up your dies in the bushings for a given caliber, you can swap between loads simply by changing the bushings and shell plate. No fine-tuning needed.
The Breech Lock quick-change feature works in all four of the press positions and requires no adjustments to use. Once your dies are set into the bushings, you're locked and ready to load. The system is designed for speed and repeatability without the complexity of re-tweaking dies for each cartridge change.
Yes. The Auto Breech Lock Pro is designed with simplicity in mind. It comes with both large and small priming arms, an auto case placer that requires no adjustments, and automatic primer disposal—features that make the learning curve gentler. The modular design also lets beginners start simple and add progressive functions as they gain confidence.

SKU: 121687188 • Width: 9.3in • Height: 7.5in • Depth: 17.5in • Weight: 11oz





Availability: In Stock
The Lee 90900 Auto Breech Lock Pro is a progressive reloading press built to deliver serious functionality without the serious price tag. If you've been holding off on progressive automation because of cost, this press changes the equation. It combines the speed and efficiency of a progressive press with a modular design that lets you control how much or how little automation you want to use—no complicated adjustments needed to switch between modes.
Setup and cartridge changes are refreshingly straightforward. The Breech Lock quick-change system works in all four press positions, and you can swap calibers in seconds without fussing with die adjustments each time. Large and small priming arms are both included, and the press handles primer disposal automatically, sending spent primers down a built-in tube rather than cluttering your bench. If you want to load straight through without breaking rhythm, you can; if you prefer to load one station at a time, the press adapts to your workflow.
Lee includes a lot of what other manufacturers charge extra for: the ergonomic wood-grip roller handle, hex wrenches for caliber changes with a built-in storage rack, and all four Breech Lock bushings. You'll need to make the initial die adjustment into your bushings once per caliber setup, but after that, the Breech Lock system keeps everything indexed and ready to go. Note that a shell plate (sold separately) is required to operate the press.
Whether you're new to reloading or you've been doing it for years, the Auto Breech Lock Pro delivers progressive-press speed and flexibility at a price that makes sense. Pair it with a set of Lee dies and a compatible shell plate, and you're ready to start loading.
| Manufacturer | Lee Precision |
| Model | 90900 Auto Breech Lock Pro |
| Press Type | Progressive Reloading Press |
| Breech Lock Bushings Included | 4 |
| Priming Arms | Large and small included |
| Handle | Wood-grip roller handle |
| Primer Disposal | Automatic, through-ram with built-in tube |
| Shell Plate | Sold separately (required) |
Yes. You'll need a set of Lee dies for your caliber and a compatible shell plate (sold separately). Once you have those, along with the press, you're ready to begin reloading. The press includes the Breech Lock bushings, priming arms, and roller handle—you won't need to buy those separately.
Cartridge changeover takes seconds. The Breech Lock system allows instant die changes in all four positions without any adjustments. After you set up your dies in the bushings for a given caliber, you can swap between loads simply by changing the bushings and shell plate. No fine-tuning needed.
The Breech Lock quick-change feature works in all four of the press positions and requires no adjustments to use. Once your dies are set into the bushings, you're locked and ready to load. The system is designed for speed and repeatability without the complexity of re-tweaking dies for each cartridge change.
Yes. The Auto Breech Lock Pro is designed with simplicity in mind. It comes with both large and small priming arms, an auto case placer that requires no adjustments, and automatic primer disposal—features that make the learning curve gentler. The modular design also lets beginners start simple and add progressive functions as they gain confidence.
SKU: 121687188 • Width: 9.3in • Height: 7.5in • Depth: 17.5in • Weight: 11oz
