Phone: 770-225-0721

Mr. Bullet Feeder Caliber Conversion


SKU: N/A Category: Tags: , , , , , , , , , , ,

The Double Alpha Mr. Bullet Feeder Conversion Kit allows you to switch your bullet feeder from one caliber to the next in a matter of minutes. The spring output tube securely attaches to the top of the dropper by using a Spring Adaptor Cap, which attaches and disconnects easily from the top of the dropper. The inner threading grips the coils of the spring firmly, preventing any chance of it coming loose during operation, and allows a quick transition from one dropper to the next.

Kit Includes:

  • Complete Dropper Assembly
  • Custom Powder Funnel
  • New Collator Plate


All pistol calibers use the same output tube, lead spring and spring adaptor cap (output assembly). So this assembly is not included in the pistol conversion kits. The rifle calibers also share the same output assembly although the assembly is included in the rifle conversion kits.

Back orders typically ship within 2 weeks.


9mm/38, 40S&W/10mm, 45ACP, 223/5.56, 308/7.62