Item #:PRDPF
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Read 4 Reviews

Product Information

The Double-Alpha PRIMAFILL is a semi-automatic primer-tube filling solution, able to quickly and easily fill both Small and Large primer tubes. It allows you to switch between Small and Large primers instantly, without tools or assembly.

The PRIMAFILL can be used with any primer tubes which have an 8mm outer diameter, such as Dillon, or DAA/Primal Rights tubes. It does not require a custom adaptor piece fitted to the tube, as other competing products require. So using the PRIMAFILL, you will be able to fill all your primer tubes!

The Extra-Large flip-tray area is convenient when emptying large primer boxes, such as Federal and others. The tray is large enough for the entire box to fit over.

The PRIMAFILL is powered by a regular 9v battery (not included). A momentary ON switch falls naturally under your index finger as you hold the device for right hand use, with your thumb centered on top of the lid. Hold the button down as you feed the primers into the tube, and release as soon as the last primer vanishes down the exit hole. Since this action should take 20 seconds or less, one battery charge will last for many thousands of primers.

The spring-loaded orange latches incorporated into the output posts enable you to snap a tube into place, or remove it, instantly without any twists or turns, the latch falls naturally under your thumb: you press down on it as you insert the tube up, and  you press up on the latch as you extract the tube downwards. An Easy and natural apposing thumb action.

Primer tubes and battery are not included!

Please Note:

  • Various brands of primers will flip best with different types of agitation motion of the flip tray. Experiment to find the optimal flip tray action required to flip your primers.
  • Various types of primers will slide differently, at different speeds. Some will require you to hold the device at a steeper angle to get them moving properly. Experiment a little to find the correct feeding angle best for your primers.
  • If a primer hangs on the exit hole, a tap with your left hand finger on top of the lid above the hole should clear that up instantly. No need to stop the vibration of the device or remove the lid.
  • If your primer tubes have an entry hole chamfer that is not well formed or not symmetrical, this can create a ledge that primers may hang up as they fall down into the tube. Try using the other end of your tube. Or, try rotating the tube to find the angle that allows the primers to flow uninterruptedly into the tube. You can mark that with a Sharpie on your tube, so you can easily position it again the same way.
  • Primer Tubes are NOT included with the device, in order to reduce costs and packaging size. Order tubes separately, if you need them.

Read 4 Reviews - Average Rating: 3.8 stars

Double alpha primafill

By Daniel W. on Mar 19, 2023
Mine doesn’t work. Primers get stuck coming out of tray to tube

Quality pieces

By Emmitt P. on Dec 12, 2022
You get what you pay for!!


By KELLY B. on Sep 07, 2022
I absolutely love this product. I never enjoyed picking up the primers in the pick-up tubes. This takes that all away and loads the tubes so much faster and easier! Really enjoy using this tool. Works flawlessly.

Double alpha primafill

By Bruce M. on Sep 02, 2022
I like the overall design, but the primer tray bottom surface design does not work as well as the Franklin Arsenal. Primers do not flip over as easily. If you are not careful there is a good chance that some primers may go down the tube upside down.
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