Airsoft rifle Daniel Defense M4 PDW (EC-645-1), Kestrel ECU - Grey

Airsoft guns from the manufacturer E&C are full-metal automatic electric guns powered by a battery. Classic materials and time-proven construction ensure low failure rates. For both beginners and advanced players, E&C guns are a great choice as they offer a modern look, good price, and sufficient performance. The manufacturer’s range includes dozens of different models that combine various stocks, sights, and modern handguards in the styles of KeyMod, MOTS, KAC, LARUE, NOVESKE, etc.

All offered models are equipped with a linear spring equivalent to approx. M120–M130. On tested pieces we measured performance up to 425 FPS (130 m/s), making the gun ideal for medium to long-range combat. Inside the gun you will also find premium 8 mm ball bearings, a metal spring guide, low-resistance wiring, a plastic rotary hop-up chamber in ProWin style, etc. The motor is sufficiently strong even when powered by an 8.4 V battery.

The gun is full-metal – the entire body, sights, stock tube, outer barrel, flash hider, and handguard. On the M-LOK handguard you can easily mount accessories such as a flashlight, laser, or grip. On the top of the body and part of the handguard, there is an integrated RIS rail for mounting sights, optics, or a red dot. The sling mount is solved with a metal loop on the bottom of the stock.

The retractable 5-position stock including the buttplate is also full-metal. The battery is inserted into the stock tube after unscrewing the cap. Its diameter is 2.5 cm and length 10 cm. The pistol grip is textured for better and more secure handling. The weapon is anodized for good corrosion protection and abrasion resistance.

By pulling the ambidextrous charging handle, the rotary ring of the hop-up chamber (ProWin style) is revealed. The bolt imitation is locked, making chamber adjustment very convenient. The bolt catch is functional and, as with the real firearm, located on the left side of the body. On this side there is also the standard fire selector. The magazine release is single-sided, on the right side of the body. The trigger guard is engraved with the weapon type and a unique serial number.

KESTREL ETU

The gun is equipped with a programmable Kestrel V2 Basic processor unit, which protects the gearbox and battery from damage (over-discharge, overvoltage/short-circuit). It also allows adjustment of piston pre-cocking in 5 levels and behavior of the fire selector (SEMI / Binary / FULL AUTO / 3-round burst). It also has an active brake function and supports the use of strong brushless or high-torque motors.

Settings are easily adjusted using the fire selector and trigger.

UPGRADE PARTS

The gun is equipped with the following internal upgrade parts:

• Kestrel V2 Basic ETU with microswitch and low-resistance wiring
• Polymer piston head with ball bearing
• Polymer piston with full-metal teeth
• Stainless steel QD spring guide with ball bearing
• Metal gearbox shell with quick spring change system
• Reinforced 18:1 gears
• 8 mm ball bearings
• Rotary ProWin-style Hop-Up chamber
• DeanT connector

This version is equipped with a QD 1.0 gearbox, which differs from the standard by the QD spring guide with bearing and modified gearbox shell for quick spring change. To replace the spring, it is necessary to remove the gearbox from the body. Only with us you will find one M100 spring included free of charge in the package. We recommend changing springs only up to M120 or weaker. An ill-considered exchange for a stronger one could lead to excessive stress on gears or piston and their non-warranty damage.

Li-Po 11.1 V READY

The gun has a Dean-T connector powered by low-resistance wiring and is ready for use with 11.1 V Li-Po batteries. The package also includes a Dean-T to Mini Tamiya adapter. As usual with branded guns, charger and battery are not included. Compatible batteries, chargers, or spare magazines can be found below in the Related products section.

The package also includes a FREE M100 spring.

• We recommend choosing spare magazines of the same brand, i.e. E&C. However, the replica is also compatible with brands such as CYMA, TopArms, Specna Arms, etc.
• We recommend 11.1V Li-Ion / Li-Pol or 7.4V Li-Ion / Li-Pol batteries.
• For this performance, the suitable ammunition is 0.25 g BBs, up to a maximum of 0.28 g.

This version is equipped with a QD 1.0 gearbox, which differs from the standard version in that it has a QD spring guide with a bearing and a modified gearbox with quick-change. To replace the spring, it is necessary to remove the gearbox from the receiver. The package includes one M100 spring free of charge, available only from us. We recommend replacing springs only with M120 and weaker ones. Careless replacement with stronger ones could lead to excessive load on the wheels or piston and damage not covered by the warranty.

BENEFITS OF E&C