Yeah, having only one mag source sucks and I'm not really that impressed with the mags. I've never had rim lock like I have with these mags. ....
Funny, I almost never have problems with my mags, especially rim lock. I am using the McFadden Wonder Loader thingamabob.
Mark me down as interested in a kit as well.
One of the main reasons I am not interested in this .22 upper is the 4.5" barrel. The short length does keep a lot of ammo subsonic, but in my experience, it also limits the reliability of a number ammo types as well. Particularly the lower cost, bulk ammo that I tend to use for .22 full auto shooting.
The use of specialty mags is another downside I do not care for. Either 12/22 or Atchisson pattern AR .22 mags are the magazine patterns I would consider.
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Best of luck.
MHO, YMMV, etc. Be well.
I am willing to work with anyone who would like to market this. If that doesn't happen I may consider having some parts made and selling them as kits that they could assemble them selves. I don't want to spend my time assembling and marketing these as I want to spend my time developing a working prototype of the m10/308 NATO.
Based off how the 80% lowers work I am I wonder if a full parts kit would be the smoothest path? Perhaps minus a key component like the barrel with a known provider of said barrels. Nobody could argue a upper without a barrel was a firearm.
Also I'm in on a kit.