E&C M4/M16 Trigger Assembly with Spring

The E&C M4/M16 Trigger Assembly with Spring is a direct-fit replacement trigger for standard AEG gearbox platforms. Designed for shooters looking to refresh worn trigger contacts or upgrade their firing control, this assembly includes the complete spring mechanism and is machined to E&C’s reliable tolerances.

Key Features

• Direct fit – compatible with standard M4/M16 AEG gearboxes
• Spring-loaded design – consistent trigger reset and response
• E&C quality – proven durability in high-cycle builds
• Easy installation – no modification required for compatible platforms
• Upgrade potential – ideal for gearbox rebuilds and performance tuning

Real-World Use Cases

This trigger assembly suits skirmishers performing routine gearbox maintenance, milsim players rebuilding after extended use, and teching enthusiasts customising AEG internals. Whether you’re replacing a worn contact set or optimising trigger response on a high-ROF build, this E&C component integrates seamlessly into M4 and M16 platforms.

Technical Specifications

• Brand: E&C
• Model: M4 / M16 Trigger with Spring
• Compatibility: Standard AEG M4/M16 gearbox
• SKU: MP054

Compatibility & Upgrades

This trigger assembly is engineered for V2 and V3 gearboxes commonly found in M4 carbines, M16 rifles, and most direct-impingement platform replicas. Verify your gearbox type before purchase. Pairs well with E&C gearbox shells, pistons, and internal components for complete rebuild projects.

UK Legal & Site Notes

Internal trigger components are unrestricted in the UK. Installation should only be performed by experienced technicians or qualified gunsmiths. Always chrono your weapon after any internal modification and confirm compliance with your local airsoft site rules.

Ready to refresh your AEG’s trigger response? Order your E&C M4/M16 trigger assembly from Airsoftdirect UK and upgrade with confidence.