TAPCO (TOOL6701) STEN Magazine Loader.

This STEN magazine loader will save you time and frustration.  Quickly and easily load your magazines with this simple to use sleeve-style loader.  Depress the loader with one hand and position the next cartridge with the other.  The textured surface provides a non-slip gripping surface to help keep things steady.  There are no moving parts to break, lubricate, or maintain.  This handy tool also features a small opening for attaching a key chain or cord for storage.

• Works with original STEN 9mm (MasterPiece Arms) magazines and the TAPCO 35rd 9mm STEN Magazine
• Will not work with Sterling magazines