I presume you mean a complete upper, since the AM180 used a flat pan drum mag? Any links? Never heard of this [not that it matters here in the PRK, as we can't own the mags anyway. Just curious...]

 

http://www.bazookabrothers.com/products3.htm
No the is a conversion so you can use the drum with an AR15. 22

 

That looks... ridiculous! Whatever floats your boat, but if I could have it here in the PRK, I'd opt for the belt-fed 22lr upper for the AR [Lake Machine, iirc?]: it just plain makes more sense if your objective is uninterrupted shooting pleasure... And a lot less "Rube Goldberg" while you're at it!

Bonus: the belt fed upper drops the empties down the now-vacant mag well like a properly house-broken rifle should. :bthumb:

 

So it's a drum-to-mag well adaptor using the am180 pan drum. Hmmm, sort of wacky balance to it I would think. good luck with that! I would just buy a AM180 and not worry. Keep the AR mags for fast and easy change outs.

 

The Am180 is prohibated up here in Canada. However the mag isn't. In Canada there is no round limit for rimfire rifles. The largest magazine is the 50 round black dog or Promag drums.
They cost almost $100 here. So $400 for the drum and conversion for 275 rounds would be fun.
That's why I'm asking.

 

Now I understand, I keep forgetting about other commie gov. regs. some have to live with. Then I guess it won't matter for looks or balance as that's your only option. I feel so blessed when people remind me of things I can still own and feel so sorry for the others who can't because of stupid people voting to be sheep to their gov. There are more sheep now more than ever feeding at the gov. troff so they are willing to give up a real life for a FREE ride, so sad!

 

Could be worse, I was visiting my sister in Australia and they prohibit semi rifles. Even rimfire ones.
I can't believe no 10/22s Just plain weird!
Anyway I would really like to find a company that sells the drum mag internationally

 

I have the am180 drums and adapter for my m16. I had one for the Uzi I used to own as well. they make the adapters for others as well. Unless you have a FA the thrill is not really there as they are heavy when loaded. As for function they work fine. my oldest plastic one is around 6 years old and while scuffed up it still runs great. You can get the drums in 165 220 and 275 capacity. I highly recommend getting the loading tray and stand they make loading MUCH MUCH faster. Bazooka bros sells the adapter the other parts drums winders and such can be had from below. http://www.brasscatchers.com/am180/parts/index.html#Anchor-MAGAZINE-14210

 

I've got one for the Uzi, and it's... finicky. Some days it runs great, and others not so much.