At Shot Show 2017, Mitusa Manufacturing showed off the Mag-Pump. It is a hopper fed magazine loader for AR-15 style magazines. While there are plenty of mag loaders on the market, the Mag-Pump is unique in that it does not matter which direction the bullet is oriented.
Mitusa advertises that this is the only magazine loader that does not require the user to handle each round. In the case of benchloaders you typically have to handle each round one at a time to load them correctly into the bench loader. Same with the Maglula AR loaders. Each round is manually inserted. There are some loaders that you dump a box of ammo into it but the bullets must be oriented properly.
Mag-Pump doesnt care which diretion the bullets are loaded and it works with with .223, 5.56 and .300 Blk ammunition. It is designed to work with mil-spec magazines.
The Mag-Pump can be quickly dissassembled and fits into a .50cal ammo can for storage. It retails for $389 if you want the billet aluminum version. It weighst 3.75 lbs. Mitusa also makes an Ultralight version that weighs 2 lbs and is made of polymer.
Go to Mag-Pump.com for more info.