Lancer Tactical Gen 4 M4 AEG Gearbox Assembly w/ Nebula II ETU System, Black

An onboard Nebula II ETU gives the Lancer Tactical Gen 4 M4 Gearbox programmable fire settings, including burst and binary options. The trigger board incorporates voltage and heat protection for sustained automatic fire. The reinforced cast metal V2 shell houses a precision full-metal gear set, a steel-toothed piston for durability under high stress, and a quick-change metal spring guide that lets you adjust FPS without disassembling the shell. Pre-shimmed from the factory, the internal train maintains smooth engagement under heavier main springs. The rear-routed wiring harness uses low-resistance copper wire pre-soldered with a Deans plug, ensuring maximum current delivery from 7.4V or 11.1V LiPo batteries. Finished in matte Black, this complete drop-in gearbox drops directly into standard Version 2 M4-series AEG lower receivers for a straightforward upgrade or drop-in repair.

Features:

• Lancer Tactical Gen 4 complete gearbox
• Nebula II ETU system
• Programmable semi, burst, and auto modes
• Adjustable trigger sensitivity
• Built-in MOSFET
• Active braking system
• Low voltage LiPo protection
• Pre-cocking functionality
• LED status indicator
• Metal gearbox shell
• Drop-in M4 AEG upgrade
• Pre-wired for easy installation