· Features a bright red LED to warn the user of the last four rounds remaining inside the magazine.
· Easy to install. Replace the factory backstrap. The system is the same size and weight of the factory backstrap.
· The system has a manual activation button to check if the firearm is low in ammunition.
· Uses one CR2016-CR2032 battery.
· Highly shock- and temperature-resistant polymer body.
· The system has an auto dim feature for low light situations.
· It does not detect the round housed in the chamber.