Specna Arms SA-F03 FLEX™ Gen.2 BLDC airsoft replica — Full Dark Bronze

Specna Arms SA-F03 FLEX Gen.2 BLDC is an electric airsoft replica built on the M4 / AR15 / M16 platform, equipped with a programmable HAL™ ETU control unit and a Dark Matter™ High Speed 27–35k brushless motor.

The FLEX Gen.2 series combines a lightweight design, solid performance, and an affordable price. This model is suitable for both indoor CQB games and outdoor airsoft games.

External construction

The replica’s receiver and 10-inch M-LOK handguard are made of nylon. The pistol grip, stock tube, adjustable stock with rubber buttpad, and mechanical sights are also made of nylon.

Aluminum parts include the muzzle device, outer barrel, controls, and charging handle. The pins, screws, and QD sling mounts are made of steel.

The model features an ambidextrous fire selector, ambidextrous magazine release, and functional bolt catch. Its features are complemented by folding mechanical sights and an adjustable stock.

Hop-Up and internal components

Rotary TDC Magnus™ Hop-Up chamber allows precise and consistent adjustment of BB backspin. The European design registration number for the chamber is 015052069-0001.

The chamber works with a Helium™ Flat Hop bucking, designed to apply consistent backspin to BBs. The replica is also fitted with an aluminum nozzle with an O-ring and a 6.03 mm inner barrel.

Internal components:

• 8 mm bushings

• Steel gears

• Polycarbonate piston with a full steel tooth rack

• Dark Matter™ High Speed 27–35k brushless motor

Æther™ gearbox and ESA™ system

The replica is equipped with a reinforced Æther™ gearbox shell, whose European design registration number is 015044865-0001.

Gearbox shell features:

• Main spring tension release function

• Inspection ports for checking pre-cocking and the piston engagement angle, or AoE

• Reinforced front section of the shell

• Inspection ports to simplify gear shimming

• Adjustable trigger

• Screw holes for precise alignment of the shell halves

• Designed for springs up to M140

The ESA™ quick spring change system lets you adjust the replica’s muzzle energy to suit the requirements of a game without disassembling the entire gearbox.

Programmable HAL™ ETU

The HAL™ electronic control unit uses Hall effect magnetic sensors to detect trigger movement. This allows you to customize trigger response and fire modes to suit your preferences.

HAL™ features:

• Magnetic sensor trigger detection

• Active motor braking

• Binary Trigger mode

• Five trigger sensitivity levels — 20–100%

• Six pre-cocking levels

• Programmable AUTO selector modes: full-auto, semi-auto, 3- or 5-round burst

• Programmable SEMI selector modes: Semi, Binary, AUG, and Sniper

• Trigger-based programming

• Low battery warning

• Compatible with brushless motors

Dark Matter™ BLDC brushless motor

The Specna Arms Dark Matter™ High Speed 27–35k motor uses BLDC brushless technology, eliminating the wear and sparking associated with traditional motor brushes.

Motor advantages:

• High energy efficiency

• Reduced mechanical wear

• Stable operation at high RPM

• Reduced heat generation

• High torque

• Fast trigger response

• Can operate with stronger springs when the drive assembly is suitably configured

Product features:

• Lightweight nylon receiver

• 10-inch M-LOK handguard

• 11-inch outer barrel

• Adjustable stock with rubber buttpad

• Ambidextrous fire selector and magazine release

• Functional bolt catch

• Folding mechanical sights

• TDC Magnus™ Hop-Up chamber

• Helium™ Flat Hop bucking

• 6.03 mm inner barrel

• Reinforced Æther™ gearbox

• 8 mm bushings and steel gears

• ESA™ quick spring change system

• Programmable HAL™ ETU

• Dark Matter™ High Speed 27–35k brushless motor

• Suitable for CQB and outdoor airsoft games

Included in the package:

• Specna Arms SA-F03 FLEX Gen.2 BLDC replica

• 2 S-MAG Mid-Cap magazines

• Cleaning rod

• Hex key

• Mini Tamiya–T-Deans adapter

• BB speedloader

• Spare M90 spring

Not included in the package:

• Battery

• Charger

Initial HAL™ activation: after connecting the battery, set the fire selector to SAFE and hold the trigger for approximately 5 seconds to activate the HAL™ unit.

Manufacturer’s recommendation: when using the replica with an M90 spring, use a 7.4 V battery to reduce the risk of malfunctions.

Technical specifications: