There are a lot of speed loaders for AR15 magazines on different sites and I have tested all of them. Unfortunately none of them fulfilled exactly what I wanted.

My requirements were:

-easy insertion of ammunition without feeding problems(especially in the magazine)

-one-handed operation

-indicator of cartridges

-compact design for easy transport

-Easy to remove from the magazine despite a good fit

-function on all my magazines

-works with any type of .223 ammunition i have

That's why I designed my own, which meets all requirements and works without any problems.

All features are marked with numbers in the pictures and described in the text:

1- Hole for 2 fingers for one-handed operation

2- Side feed window to prevent the cartridges from twisting

3- Rounding of the pusher to minimize slipping of the cartridges

4- indicator to see if cartridges are twisted

5- Magazine holder that is stable but can be easily removed

Instructions for use:

1. Insert the magazine until it locks.

2. Turn the magazine slightly at an angle and insert up to 5 RDs through the side window.

3. Place the pusher from above and press it all the way down.

   (Repeat points 2+3 until the magazine is full)

4. Place your thumb under the lock (see picture) and push forward, do not press upwards.

5. The magazine is filled and ready for use.

My design is compatible with Ar15 plastic magazines from all manufacturers (tested with Magpull, Hera, OA, UTG, FAB, Schmeisser). However, it does not work with STANAG magazines because they have different dimensions and jam too much.