Hi, this is Racheal, we do have a speed loader for the AR15.22 mags- It is called the Lightenin' Grip Loader. Here is a link to the item on our website: http://blackdogmachinellc.net/lightnin-grip-loader.aspx
I got one of the Lightnin' Grip speed loaders with an AR15.22 adapter earlier this week and it works like a charm. Loads mags so quickly I was done with 8 in 15 minutes. Worked on BDM, CMMG and Chiappa mags.
You need to give the designer a bonus!
My dad told me that Santa was tired of cookies & milk and if I left Doritos & beer I would get extra toys. That went on for years.