Delta Armory M4 M-LOK 10" ALPHA ETU Upgrade - Black

Delta Armory ALPHA ETU Series (Fully Upgraded)

Delta Armory is a manufacturer of high-end airsoft AEG replicas of AR15 (M4/16), offered in several variations based on the body material and internal components.
This replica belongs to the ALPHA ETU line, boasting a high-quality metal body that is perfectly matched, making it one of the highest quality bodies in this price range. The CRANE stock Delta Armory was designed with modern ergonomics in mind and provides ample space for 3-piece Crane-type batteries (you can also use Stick Buffer and Nunchuk type batteries). Access to the battery is through the stock pad.
QD V2 grip offers a comfortable and secure grip, a stable motor pressure adjustment system, and quick access to the motor.
The entire gun boasts a full-metal construction, including the gun body, CNC handguard, barrel with an external 14-mm thread (CCW), buffer tube, and other external elements (excluding the stock and grip). There is also a CNC trigger - Type A, which is part of the ALPHA and BRAVO series and is typically seen only on upgraded or top-tier guns.

The M4 M-LOK 10" ALPHA ETU model features a CNC metal M-LOK handguard (254 mm), allowing for the attachment of various accessories such as grip, AN/PEQ box, flashlight, etc.
The brain and heart of the ALPHA ETU series replicas is the ETU processor unit from Delta Armory.

ETU Processor Unit

This unit not only ensures an instant trigger response but also allows for the full use of the power of the 11.1 Li-Pol battery, which is placed in the buffer tube.
The ETU unit offers fire mode settings for 3-round burst, automatic, binary mode (double shot), and pre-cocking.

Fire mode programming options:

• Single / 3-round burst / auto
• Binary trigger
• Pre-cocking mode

Tuned Internal Parts

The gun's internal parts are equipped with top-notch upgrade components from the Delta Armory Alpha ETU Fully Upgraded series, including SHS piston, rotary hop-up chamber, and a precision inner barrel with a diameter of 6.03 mm. Quick-change spring system QSC Gen2 allows for easy performance adjustment. The manufacturer claims a gearbox shell lifespan up to M120 springs.

List of internal parts:

• DA CNC gears 16:1
• DA CNC piston head
• DA CNC nozzle
• DA CNC stainless steel cylinder
• DA CNC stainless steel spring guide
• DA high-torque motor with strong neodymium magnets
• SHS piston with full-metal teeth
• DA precision barrel 6.03 mm
• ETU unit with a T-DEAN connector to the stock

Package Contents

• M4 M-LOK 10" ALPHA ETU gun
• DMAG mid-cap magazine for 120 BBs (the manufacturer recommends not filling it to full capacity but around 100 BBs for longer spring life)
• Tactical grip
• Folding sights

Warning

The battery and charger are not included.

History of the M4 (AR15) Assault Rifle

M4 is a compact automatic rifle of the AR15 platform developed in the United States based on the popular M16 assault rifle. It was designed to meet the need for a lighter and shorter version of the M16, suitable for use in confined spaces and urban combat.
In the 1960s, the M16, developed by Armalite, was adopted by the U.S. military. Later, the M16 rifle became the basic design for the M4. In the 1980s, the first M4 prototypes appeared with a shorter barrel and a telescopic stock, improving maneuverability in limited spaces.
In the 1990s, the M4 was officially adopted by the U.S. armed forces as the standard carbine, replacing older models like the M3 and M9. The M4 rifle features the ability to fire both single shots and bursts, making it a versatile weapon.
The M4 quickly became popular among soldiers due to its low weight, compactness, and reliability. It was widely used in conflicts such as the Iraq and Afghanistan wars and became an iconic weapon of modern U.S. armed forces.
In addition to the standard model, there are many variants of the M4 equipped with various accessories and upgrades to meet the specific needs of military units.