Product Overview

Keep your reloading workflow running smoothly with the Lee Decapper for ACP Deprime Kit (#91714) and APP Deprime Kit (#91588). Purpose-built as a spare decapping pin for Lee’s Automatic Case Primer (ACP) and Automatic Processing Press (APP) systems, this small part plays a big role — reliably punching spent primers so you can process brass quickly and with confidence.

Designed to drop straight into the ACP or APP Deprime Kits, the AC3993 decapper restores your setup to full function in minutes when a pin eventually wears or breaks. Having a dedicated replacement on hand means less downtime at the bench, more time loading, and no frustrating interruptions mid-session. Whether you’re bulk-processing brass for competition, hunting, or general range use, this Lee Precision decapper helps maintain consistent, trouble-free depriming performance across thousands of cases.

Key Features

• Purpose-built decapper pin for ACP and APP Deprime Kits ensures reliable spent primer removal during case preparation.
• Compatible with both ACP Deprime Kit (#91714) and APP Deprime Kit (#91588), giving you flexible use across multiple Lee systems.
• Genuine Lee Precision spare part maintains factory fit and function, helping keep your reloading setup running smoothly.
• Compact, lightweight design (approx. 0.05 lbs) is easy to store in your range or reloading kit as a ready spare.
• Durable construction is designed to withstand repeated cycling, reducing downtime from broken or worn pins.
• Simple drop-in replacement minimises setup time so you can get back to depriming cases quickly.
• Ideal backup component so you’re not caught out mid-session by an unexpected decapper failure.
• Precisely sized to work with the ACP Automatic Case Primer and Lee APP Automatic Processing Press systems for consistent performance.
• Small form factor (approx. 5 × 0.4 × 0.4 in) makes it easy to handle and install without special tools.
• Cost-effective way to extend the service life of your existing Lee depriming kits instead of replacing the entire assembly.