LEE 92128 Factory Crimp Micro Seater Adapter 9mm Luger

The LEE 92128 Factory Crimp Micro Seater Adapter transforms standard seating dies into precision crimping tools for 9mm Luger ammunition. This adapter enables reloaders to achieve consistent bullet seating depth while applying the optimal crimp for reliable feeding and ignition.

What Makes This Different

Unlike traditional seating dies that combine seating and crimping functions, this adapter separates these operations for superior control. The micro-adjustment feature allows precise crimp adjustments in increments smaller than standard dies provide. This separation eliminates the common problem of bullet deformation that occurs when seating and crimping happen simultaneously under excessive pressure.

Key Features

• Micro-adjustment threading for precise crimp control in 0.001-inch increments
• Hardened steel construction with corrosion-resistant finish
• Compatible with standard 7/8-14 thread press systems
• Factory crimp design maintains case mouth integrity
• Eliminates bullet deformation during crimping process
• Reduces cartridge overall length variations by 50% compared to combination dies
• Works with all 9mm Luger bullet weights from 90 to 147 grains

This adapter delivers measurable improvements in ammunition consistency, particularly important for competitive shooters and those loading match-grade ammunition. The separate crimping operation ensures uniform case mouth tension across entire batches. Competition shooters report tighter velocity spreads and improved accuracy when using dedicated crimping operations versus combination seating/crimping dies.

Technical Specs

• Caliber: 9mm Luger/.355 diameter bullets
• Thread: Standard 7/8-14 TPI
• Material: Heat-treated alloy steel
• Finish: Black oxide coating
• Adjustment range: 0.020 inches total travel
• Compatible with: Lee, RCBS, Hornady, Dillon presses
• Country of origin: United States
• Manufacturer warranty: Limited lifetime

This adapter represents a cost-effective upgrade for reloaders seeking match-quality ammunition without investing in premium die sets. The micro-adjustment capability and dedicated crimping function produce ammunition that meets or exceeds factory specifications for consistency and reliability.