I picked up one, extra stripper clips and the speed loader at TnT Gunworks in Regina about a month ago. Personally, I wish I had the hundred bucks back. I've had two loadouts on the magazine work properly, and easily 15 that didn't work worth a crap. On three occasions I got so frustrated with it I tossed it in my bag and went back to Butler Creek for the rest of the day.
They're super fast to load with the stripper clips, but any time you save there is easily eaten up while you #### around trying to get the rounds straight, lined up and properly tensioned. I've done everything EXACTLY the way they say on the websites videos...Nada. When they work, they work wonderfully....the problem for me is, they barely ever work properly.