The MCX Rattler from E&C is a compact assault rifle based on the modern Sig Sauer platform. This versatile rifle combines a robust metal construction with modular customisation possibilities, making it perfect for both CQB and field play.

The first thing you notice about the MCX Rattler is its weight – solid but well-balanced. Its compact dimensions make it manoeuvrable in buildings, while its stable construction ensures consistent performance at a distance.

What makes the MCX Virtus | Grey | Sig Sauer | E&C special?

This replica is based on the real MCX platform used by elite units worldwide. The official Sig Sauer license ensures authentic markings and realistic details. The modern M-LOK rail system and the grey finish give this model a professional military look that will immediately stand out on the field.

Technology & performance

This AEG rifle is powered by a reliable V2 gearbox with MOSFET for contact protection. With a firing rate of 300 FPS and 1.0 joule (measured with 0.20g BBs) the MCX Rattler is perfect for CQB. The adjustable hop-up ensures accurate shots at medium range. The quick-change spring system allows for easy power adjustment without opening the gearbox.

This airsoft version features a true 1:1 scale and detailed workmanship. The handguard is CNC-machined and includes M-LOK slots at 3, 6, and 9 o’clock positions for tactical attachments. The top RIS rail allows mounting of any optics or red dot sight. The gun includes a functional bolt catch, ambidextrous fire selector, and a modern PDW-style adjustable stock with 3 positions. Its construction is designed with easy servicing in mind and is inspired by the real weapon.

At the heart of the gun is a standard V2 QSC gearbox with quick spring change, which allows power tuning without removing the gearbox from the body. The battery is installed in the handguard; since the space is very tight, a suitable battery would be a 7.4V Li-Po Stick or Nunchuck, installed around the outer barrel inside the handguard. The E-shooter Kestrel Basic ETU V2 unit improves trigger response, protects electronics, and allows basic programming.

Kestrel BASIC V2 ETU Features:

Simple programming:
3-step trigger programming. Reset all settings by holding the trigger for 8 seconds.

Pre-cocking:
5 adjustable pre-cocking levels. Auto-learning detects piston position. Upon battery connection or reconnection, the unit fires a few BBs to calibrate.

Brushless motor support:
Works with high-speed or high-torque brushless motors.

Long lifespan:
Maintains stable performance even after 50,000+ shots.

Active braking:
Adapts piston position, stabilises gearbox, and extends component life.

Locked rotor protection:
Prevents gearbox damage when the motor fails.

Low battery warning:
Motor vibrates and blue LED blinks 5× when battery is low.

Voltage protection:
Detects cell count, supports 6V to 17V Li-Po batteries.

Key Features:
1:1 scale replica: Realistic design and dimensions.
CNC M-LOK handguard: Ready for modern tactical attachments.
V2 QSC gearbox: Enables spring changes without gearbox removal.
Programmable ETU: E-shooter Kestrel BASIC V2 for performance tuning.
PDW stock: Adjustable, compact, and user-friendly.
Functional controls: Bolt catch and ambidextrous fire selector.
Technical Specifications
Power type: AEG
Muzzle velocity: approx. 100 m/s
Gearbox: Version 2
Quick spring change: Yes
Processor unit: E-shooter Kestrel ETU BASIC V2
Hop-up: Adjustable
Connector: small Tamiya (in handguard)
Battery type: Slim Stick or Nunchuck
Fire mode: Safe / Semi / Full Auto
Recommended voltage: 7.4V
Magazine capacity: 130 BBs (Mid-Cap)
Body material: Metal