Perun ETU++ MOSFET for G&G ETU Gearboxes Gears and Motors This chamber is designed for

This chamber is designed for use with AEG inner barrels

What magazines and BBs should I use

standard slide stop

Modifications may be required to fit some bodies

waist size: 42 - 46

Perun ETU++ MOSFET for G&G ETU Gearboxes Gears and Motors This chamber is designed forFeatures Electronic burst Active brake with adjustable braking power Precocking with spring release feature Rate of fire reduction DMR mode Low battery voltage alarm Programming supported with a multicolor LED diode Diagnostic system & electronic resettable fuse ETU++ is a dedicated replacement for G&G ETU electronic board. It enhances your trigger unit by adding many new, useful features. Simply disconnect the stock electronic board and plug in