M4 airsoft SA-F05-RL FLEX ETU
Specna Arms SA-F05-RLFLEX™ Light Ops Stock/New Receiver HAL ETU™ Airsoft Carbine
Specna Arms introduces the FLEX™ line featuring the advanced HAL™ chip for exceptional performance and easy programmability through trigger and selector functions.
HAL™ Chip Features
- Trigger detection: Based on magnetic sensors and Hall effect technology
- Active brake: Improved trigger response and gearbox protection
- Binary trigger: Allows quick double-shot firing
- Adjustable trigger sensitivity: 5 levels, from 20% to 100%
- Adjustable pre-cocking: 6 levels
- Programmable AUTO fire modes: Full auto, semi, 3-round burst, and 5-round burst
- Programmable SEMI fire modes: Semi, binary, AUG, sniper
- Easy programming: Configure settings via trigger
- Low battery alarm: Alerts when power is low
- Brushless motor compatibility: Optimized for high-performance setups
Note: The AUTO function initially fires a 3-round burst, followed by Full Auto.
Robust Construction and Material Quality
The replica’s body is crafted from nylon fiber-reinforced polymer, offering durability and a matte finish. Key components are made of metal for strength and realism:
- Aluminum alloy parts: Flame suppressor, external barrel, gas block, handguard holder, sights, slide, fire mode switch, magazine release, pins, and reloading lever
- Double-sided manipulators: Enlarged controls for ambidextrous use
- Functional bolt-catch
Light Ops Stock Design
The Light Ops Stock is a minimalist, lightweight stock featuring:
- Rubber non-slip pads on both sides of the cheek piece
- Curved rubber butt plate for shoulder comfort
Internal Mechanics
- 8mm slide bearings
- Steel gears
- Polycarbonate piston with a full steel rail
- Type 2 cylinder and steel cut-off lever
- Rotary Hop-Up chamber with a high-precision 6.03mm barrel
Quick Spring Change System (ESA™)
The ESA™ system allows rapid adjustment of FPS for different field conditions without needing special tools.
Additional Features
- Lightweight and compact design
- Double-sided manipulators
- HAL™ system integration
- Light Ops stock with ergonomic pistol grip
- M-LOK front end with three RIS sections and dorsal rail
- Precision barrel and rotary Hop-Up system
- ESA™ quick-change spring system
- Folding sighting instruments
Package Includes
- S-Mag Hi-Cap Magazine
- Cleaning rod
- Deans adapter - small Tamiya
- Replica
Package Excludes
- Battery and charger are not included
Technical Specifications
- Battery included: No
- Bearings diameter: 8mm
- Blowback: No
- Color: Black
- Product length: 84 cm
- Weight: 2335 g
- Power source: Electric
- Material: Metal and plastic
- Muzzle velocity: 370 FPS
- Fire modes: Full-auto and Semi-auto
- Gearbox version: V2
- Hop-Up: Adjustable
- Inner barrel length: 320 mm
- Minimum length: 755 mm
- Magazine capacity: 300 rounds
- MOSFET/ETU: Yes (HAL™)
- Specna Arms Line: FLEX™
- Quick Spring Change system: Yes
- Plug type: Deans / T-connect
- Barrel thread: 14mm CCW
Product Information
Product Information
Shipping & Returns
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M4 airsoft SA-F05-RL FLEX ETU
M4 airsoft SA-F05-RL FLEX ETU
Specna Arms SA-F05-RLFLEX™ Light Ops Stock/New Receiver HAL ETU™ Airsoft Carbine
Specna Arms introduces the FLEX™ line featuring the advanced HAL™ chip for exceptional performance and easy programmability through trigger and selector functions.
HAL™ Chip Features
- Trigger detection: Based on magnetic sensors and Hall effect technology
- Active brake: Improved trigger response and gearbox protection
- Binary trigger: Allows quick double-shot firing
- Adjustable trigger sensitivity: 5 levels, from 20% to 100%
- Adjustable pre-cocking: 6 levels
- Programmable AUTO fire modes: Full auto, semi, 3-round burst, and 5-round burst
- Programmable SEMI fire modes: Semi, binary, AUG, sniper
- Easy programming: Configure settings via trigger
- Low battery alarm: Alerts when power is low
- Brushless motor compatibility: Optimized for high-performance setups
Note: The AUTO function initially fires a 3-round burst, followed by Full Auto.
Robust Construction and Material Quality
The replica’s body is crafted from nylon fiber-reinforced polymer, offering durability and a matte finish. Key components are made of metal for strength and realism:
- Aluminum alloy parts: Flame suppressor, external barrel, gas block, handguard holder, sights, slide, fire mode switch, magazine release, pins, and reloading lever
- Double-sided manipulators: Enlarged controls for ambidextrous use
- Functional bolt-catch
Light Ops Stock Design
The Light Ops Stock is a minimalist, lightweight stock featuring:
- Rubber non-slip pads on both sides of the cheek piece
- Curved rubber butt plate for shoulder comfort
Internal Mechanics
- 8mm slide bearings
- Steel gears
- Polycarbonate piston with a full steel rail
- Type 2 cylinder and steel cut-off lever
- Rotary Hop-Up chamber with a high-precision 6.03mm barrel
Quick Spring Change System (ESA™)
The ESA™ system allows rapid adjustment of FPS for different field conditions without needing special tools.
Additional Features
- Lightweight and compact design
- Double-sided manipulators
- HAL™ system integration
- Light Ops stock with ergonomic pistol grip
- M-LOK front end with three RIS sections and dorsal rail
- Precision barrel and rotary Hop-Up system
- ESA™ quick-change spring system
- Folding sighting instruments
Package Includes
- S-Mag Hi-Cap Magazine
- Cleaning rod
- Deans adapter - small Tamiya
- Replica
Package Excludes
- Battery and charger are not included
Technical Specifications
- Battery included: No
- Bearings diameter: 8mm
- Blowback: No
- Color: Black
- Product length: 84 cm
- Weight: 2335 g
- Power source: Electric
- Material: Metal and plastic
- Muzzle velocity: 370 FPS
- Fire modes: Full-auto and Semi-auto
- Gearbox version: V2
- Hop-Up: Adjustable
- Inner barrel length: 320 mm
- Minimum length: 755 mm
- Magazine capacity: 300 rounds
- MOSFET/ETU: Yes (HAL™)
- Specna Arms Line: FLEX™
- Quick Spring Change system: Yes
- Plug type: Deans / T-connect
- Barrel thread: 14mm CCW
Original: $201.18
-70%$201.18
$60.35Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Specna Arms SA-F05-RLFLEX™ Light Ops Stock/New Receiver HAL ETU™ Airsoft Carbine
Specna Arms introduces the FLEX™ line featuring the advanced HAL™ chip for exceptional performance and easy programmability through trigger and selector functions.
HAL™ Chip Features
- Trigger detection: Based on magnetic sensors and Hall effect technology
- Active brake: Improved trigger response and gearbox protection
- Binary trigger: Allows quick double-shot firing
- Adjustable trigger sensitivity: 5 levels, from 20% to 100%
- Adjustable pre-cocking: 6 levels
- Programmable AUTO fire modes: Full auto, semi, 3-round burst, and 5-round burst
- Programmable SEMI fire modes: Semi, binary, AUG, sniper
- Easy programming: Configure settings via trigger
- Low battery alarm: Alerts when power is low
- Brushless motor compatibility: Optimized for high-performance setups
Note: The AUTO function initially fires a 3-round burst, followed by Full Auto.
Robust Construction and Material Quality
The replica’s body is crafted from nylon fiber-reinforced polymer, offering durability and a matte finish. Key components are made of metal for strength and realism:
- Aluminum alloy parts: Flame suppressor, external barrel, gas block, handguard holder, sights, slide, fire mode switch, magazine release, pins, and reloading lever
- Double-sided manipulators: Enlarged controls for ambidextrous use
- Functional bolt-catch
Light Ops Stock Design
The Light Ops Stock is a minimalist, lightweight stock featuring:
- Rubber non-slip pads on both sides of the cheek piece
- Curved rubber butt plate for shoulder comfort
Internal Mechanics
- 8mm slide bearings
- Steel gears
- Polycarbonate piston with a full steel rail
- Type 2 cylinder and steel cut-off lever
- Rotary Hop-Up chamber with a high-precision 6.03mm barrel
Quick Spring Change System (ESA™)
The ESA™ system allows rapid adjustment of FPS for different field conditions without needing special tools.
Additional Features
- Lightweight and compact design
- Double-sided manipulators
- HAL™ system integration
- Light Ops stock with ergonomic pistol grip
- M-LOK front end with three RIS sections and dorsal rail
- Precision barrel and rotary Hop-Up system
- ESA™ quick-change spring system
- Folding sighting instruments
Package Includes
- S-Mag Hi-Cap Magazine
- Cleaning rod
- Deans adapter - small Tamiya
- Replica
Package Excludes
- Battery and charger are not included
Technical Specifications
- Battery included: No
- Bearings diameter: 8mm
- Blowback: No
- Color: Black
- Product length: 84 cm
- Weight: 2335 g
- Power source: Electric
- Material: Metal and plastic
- Muzzle velocity: 370 FPS
- Fire modes: Full-auto and Semi-auto
- Gearbox version: V2
- Hop-Up: Adjustable
- Inner barrel length: 320 mm
- Minimum length: 755 mm
- Magazine capacity: 300 rounds
- MOSFET/ETU: Yes (HAL™)
- Specna Arms Line: FLEX™
- Quick Spring Change system: Yes
- Plug type: Deans / T-connect
- Barrel thread: 14mm CCW






















