Blackdog Machine .22 LR Magazine Loader

[imschur]

It looks like its for AR-15 .22 conversions and dedicated uppers. I wonder what else it will work with. Click here

[Microgunner]

That mag looks similar to the SIG 522 mag.

[imschur]

BD makes the mags for Sig and I believe they use the same mags as the conversions and dedicated uppers. Good eye man..

[Mr. Jones]

This was made specifically for the 522 mags, but will work with any conversion mag as well.  Some have reported that the interior of the loader needs filing or sanding to make it operate smoothly; others have used them right out of the box with no problems.

I have one myself, but quit using it much after I modified my magazines with pull strings to retract the follower. 

[kandyredcoi]

i think im gonna order one

its kind of a pain to load the 522mags, large magazine small bullet lol