https://www.youtube.com/watch?v=kopxfsupchY

The McFadden Machine Co. Inc. Ultimate Clip Loader will save your thumbs and load a 10 round magazine in as little as 3 seconds! Just empty a 50 round box of 22 rimfire ammunition into the hopper of the loader, insert a magazine and remove. The magazine follower is held down by the adjustable detent screw for easy, rapid, and automatically loading. This loader will make a brick of 500 rounds disappear in no time. The only thing faster is unloading the magazine, with your gun! Made in the USA!

Length: 11"

Works for the following pistol magazines:

Ruger® Mark II™ & Mark II™ 22/45™
Ruger® Mark III™, Mark III™ 22/45™ & Mark III™ 22/45™ LITE
Ruger® Mark IV™, Mark IV™ 22/45™ and Mark IV™ 22/45™ LITE
Colt Woodsmen Mag.
Old Military High Standard
Newer High Standard
Browning Buck Mark Pistols
Stoeger Luger

Will not work with:

Beretta 89
Kimber Rimfire Target
S&W 41
S&W 422
S&W 622
Savage 66
Sig Sauer Mosquito
Walther GSP
Walther P22
SW22® Victory™
Ruger® SR22®