The Lee Smart Lock Breech Lock Bushings (Lee Precision part no. 91933) come four to a pack and let reloaders drop dies into a press without threading on a separate lock ring for each one. Each bushing uses a splined, easy-grip drive surface for fast, accurate installation, and an internal O-ring holds the set position so a die keeps its adjustment once it is dialed in. That means a reloader can pull a die for cleaning or storage and reinstall it later at the exact same seating or sizing depth. The bushings work with any press using Lee’s breech lock system, cutting down on the fumbling that comes with conventional lock rings during caliber changes.

Key Specifications

• Sold as a 4-pack, enough to outfit a full die set.
• Splined, no-roll drive surface for quick, accurate die installation without tools.
• Internal O-ring maintains die position once adjusted, so settings are not lost between uses.
• Eliminates the need for separate lock rings on each die.
• Ships at approximately 0.15 lb.

Frequently Asked Questions

How many bushings come in this pack? Four, enough to cover a typical multi-die reloading setup.

Do these bushings replace lock rings entirely? Yes, each bushing takes the place of a conventional lock ring and holds its set position with an internal O-ring.

Buy the Lee Smart Lock Breech Lock Bushings 4-Pack

Speed up caliber changes and stop losing die adjustments with a set of Smart Lock bushings on the bench. Order from Lee Precision through our shellholders and die accessories lineup, with fast shipping from our Lubbock, Texas gun shop.