Mag Sensor Unit Kit

This unit is a plug-and-play add-on compatible with any Trigger Master Mark III unit with the number "3.8" or later on the bottom. (This should include any unit sold in 2010 and later.)

When plugged into a Trigger Master Mark III, the Mag Sensor Unit:

• Prevents firing when no magazine is inserted, and
• Forces a mag change after a certain amount of firing (adjustable).

This "Virtual Magazine" feature allows a small number of high capacity magazines to simulate a larger number of lowcap (or realcap) magazines by forcing the shooter to switch magazines in order to keep firing! It can also be used to make SAWs or LMGs reload after a more realistic number of rounds are fired (instead of being able to fire the entire boxmag in one go.)

You have to download your own manual for this item. Download it here.