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You're getting pretty serious about airsoft, aren't you? We know the drill. The best way to dive deeper into our world is to upgrade your weapon. Because suddenly you'll find that your baby shoots farther, is more accurate, sounds better and breaks down less. And that's just the tip of the iceberg! Internal parts for electric airsoft guns come i...
You're getting pretty serious about airsoft, aren't you? We know the drill. The best way to dive deeper into our world is to upgrade your weapon. Because suddenly you'll find that your baby shoots farther, is more accurate, sounds better and breaks down less. And that's just the tip of the iceberg! Internal parts for electric airsoft guns come in many categories, but if you're just starting out, you should definitely look for a new mechabox, spring, seals and HopUp chamber first.



: JeffTron
JT-LEV-V2F-FB
Leviathan V2 Optical ETU unit by JeffTron with front wiring. Includes a CNC aluminum FLAT trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: Perun
PERUN010
Perun V2 Hybrid replaces mechanical contacts in your airsoft replica or gel blaster and provides lots of useful features. Optical and magnetic sensors allow to eliminate many moving parts that are prone to damage, thus increasing the reliability. Adaptive trigger control allows switching from a very short trigger travel to a long one even in the field,...
: Perun
PERUN011
Perun V2 Hybrid replaces mechanical contacts in your airsoft replica or gel blaster and provides lots of useful features. Optical and magnetic sensors allow to eliminate many moving parts that are prone to damage, thus increasing the reliability. Adaptive trigger control allows switching from a very short trigger travel to a long one even in the field,...
: JeffTron
JT-LEV-V2S-SB
Leviathan V2 Optical ETU unit by JeffTron with rear wiring. Includes a CNC aluminum SPEED trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2S-FB
Leviathan V2 Optical ETU unit by JeffTron with rear wiring. Includes a CNC aluminum FLAT trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2S-FR
Leviathan V2 Optical ETU unit by JeffTron with rear wiring. Includes a CNC aluminum FLAT trigger by Retro Arms (red). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2S-EB
Leviathan V2 Optical ETU unit by JeffTron with rear wiring. Includes a CNC aluminum EDGE trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2S-CB
Leviathan V2 Optical ETU unit by JeffTron with rear wiring. Includes a CNC aluminum CURVED trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2S-CR
Leviathan V2 Optical ETU unit by JeffTron with rear wiring. Includes a CNC aluminum CURVED trigger by Retro Arms (red). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2S-CLASB
Leviathan V2 Optical ETU unit by JeffTron with rear wiring. Includes a CNC aluminum CLASSIC trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance...
: JeffTron
JT-LEV-V2F-SB
Leviathan V2 Optical ETU unit by JeffTron with front wiring. Includes a CNC aluminum SPEED trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2F-SR
Leviathan V2 Optical ETU unit by JeffTron with front wiring. Includes a CNC aluminum SPEED trigger by Retro Arms (red). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2F-FR
Leviathan V2 Optical ETU unit by JeffTron with front wiring. Includes a CNC aluminum FLAT trigger by Retro Arms (red). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2F-EB
Leviathan V2 Optical ETU unit by JeffTron with front wiring. Includes a CNC aluminum EDGE trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2F-ER
Leviathan V2 Optical ETU unit by JeffTron with front wiring. Includes a CNC aluminum EDGE trigger by Retro Arms (red). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2F-CB
Leviathan V2 Optical ETU unit by JeffTron with front wiring. Includes a CNC aluminum CURVED trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance...
: JeffTron
JT-LEV-V2F-CR
Leviathan V2 Optical ETU unit by JeffTron with front wiring. Includes a CNC aluminum CURVED trigger by Retro Arms (red). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance simulation.
: JeffTron
JT-LEV-V2F-CLASB
Leviathan V2 Optical ETU unit by JeffTron with front wiring. Includes a CNC aluminum CLASSIC trigger by Retro Arms (black). For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode with just 0.13 mm of travel. RFTS system – realistic trigger resistance...
: JeffTron
JT-LEV-V3-EX
Leviathan V3 Optical ETU unit by JeffTron with front wiring (handguard / above gearbox). In a set with a wiring jumper / extender to the stock. Designed for gearbox V3 (AK series, G36, CZ805 Bren, and others). Bluetooth programming via JeffTron app (iOS / Android). Hair trigger mode. Ready for Brushless motors. RFTS system – resistance similar to a...