M4 airsoft SA-C21 CORE HAL ETU Gen.2
Discover the M4 airsoft SA-C21 CORE HAL ETU Gen.2 by Specna Arms ā a dependable M4 airsoft carbine built for serious players. Engineered on the CORE Gen.2 platform with HAL ETU Gen.2 electronics, this rifle blends realistic handling with modern features and outstanding value. Specna Arms is a name you can trust for reliability and durability, making this a smart choice for skirmishes, CQB, and field play. This model is a top option for a M4 airsoft carbine with ETU Gen2 and CORE Gen2 platform. Explore more in our /collections/airsoft-guns to see compatible gear. š„
- CORE Gen.2 platform: Enhanced durability and realistic handling for long-term field performance.
- HAL ETU Gen.2 electronic trigger unit: Provides faster trigger response and programmable options for improved control during engagements.
- Modern features: Designed for quick customization and compatibility with a wide range of accessories.
- Outstanding value: High-quality construction and performance at a competitive price point.
- Trusted brand heritage: Specna Arms is known for reliability, durability, and value, giving players confidence on the field.
Technical specifications
- Platform: CORE Gen.2
- Model: SA-C21 CORE HAL ETU Gen.2
- Fire control: HAL ETU Gen.2 electronic trigger unit
- Configuration: M4 airsoft carbine
- Brand: Specna Arms
| Battery included |
No
|
| Blow Back |
No
|
| Colour |
Black
|
| Product length [cm] |
72
|
| Product weight [g] |
2140
|
| Muzzle velocity [FPS] |
390
|
| Fire mode |
Full-auto
Adjusted burst
Semi-auto
|
| Gearbox version |
Gearbox v2
|
| Hop-Up |
Yes
|
| Inner barrel length [mm]. |
210
|
| Magazine capacity [pcs.] |
125
|
| MOSFET/ETU |
Yes
|
| Specna Arms Line |
COREā¢
|
| Quick Spring Change system |
Yes
|
| Type of plug |
DEANS / T-connect
|
| Type of thread on the barrel |
14mm CCW
|
Product Information
Product Information
Shipping & Returns
Shipping & Returns


















M4 airsoft SA-C21 CORE HAL ETU Gen.2
M4 airsoft SA-C21 CORE HAL ETU Gen.2
Discover the M4 airsoft SA-C21 CORE HAL ETU Gen.2 by Specna Arms ā a dependable M4 airsoft carbine built for serious players. Engineered on the CORE Gen.2 platform with HAL ETU Gen.2 electronics, this rifle blends realistic handling with modern features and outstanding value. Specna Arms is a name you can trust for reliability and durability, making this a smart choice for skirmishes, CQB, and field play. This model is a top option for a M4 airsoft carbine with ETU Gen2 and CORE Gen2 platform. Explore more in our /collections/airsoft-guns to see compatible gear. š„
- CORE Gen.2 platform: Enhanced durability and realistic handling for long-term field performance.
- HAL ETU Gen.2 electronic trigger unit: Provides faster trigger response and programmable options for improved control during engagements.
- Modern features: Designed for quick customization and compatibility with a wide range of accessories.
- Outstanding value: High-quality construction and performance at a competitive price point.
- Trusted brand heritage: Specna Arms is known for reliability, durability, and value, giving players confidence on the field.
Technical specifications
- Platform: CORE Gen.2
- Model: SA-C21 CORE HAL ETU Gen.2
- Fire control: HAL ETU Gen.2 electronic trigger unit
- Configuration: M4 airsoft carbine
- Brand: Specna Arms
| Battery included |
No
|
| Blow Back |
No
|
| Colour |
Black
|
| Product length [cm] |
72
|
| Product weight [g] |
2140
|
| Muzzle velocity [FPS] |
390
|
| Fire mode |
Full-auto
Adjusted burst
Semi-auto
|
| Gearbox version |
Gearbox v2
|
| Hop-Up |
Yes
|
| Inner barrel length [mm]. |
210
|
| Magazine capacity [pcs.] |
125
|
| MOSFET/ETU |
Yes
|
| Specna Arms Line |
COREā¢
|
| Quick Spring Change system |
Yes
|
| Type of plug |
DEANS / T-connect
|
| Type of thread on the barrel |
14mm CCW
|
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Discover the M4 airsoft SA-C21 CORE HAL ETU Gen.2 by Specna Arms ā a dependable M4 airsoft carbine built for serious players. Engineered on the CORE Gen.2 platform with HAL ETU Gen.2 electronics, this rifle blends realistic handling with modern features and outstanding value. Specna Arms is a name you can trust for reliability and durability, making this a smart choice for skirmishes, CQB, and field play. This model is a top option for a M4 airsoft carbine with ETU Gen2 and CORE Gen2 platform. Explore more in our /collections/airsoft-guns to see compatible gear. š„
- CORE Gen.2 platform: Enhanced durability and realistic handling for long-term field performance.
- HAL ETU Gen.2 electronic trigger unit: Provides faster trigger response and programmable options for improved control during engagements.
- Modern features: Designed for quick customization and compatibility with a wide range of accessories.
- Outstanding value: High-quality construction and performance at a competitive price point.
- Trusted brand heritage: Specna Arms is known for reliability, durability, and value, giving players confidence on the field.
Technical specifications
- Platform: CORE Gen.2
- Model: SA-C21 CORE HAL ETU Gen.2
- Fire control: HAL ETU Gen.2 electronic trigger unit
- Configuration: M4 airsoft carbine
- Brand: Specna Arms
| Battery included |
No
|
| Blow Back |
No
|
| Colour |
Black
|
| Product length [cm] |
72
|
| Product weight [g] |
2140
|
| Muzzle velocity [FPS] |
390
|
| Fire mode |
Full-auto
Adjusted burst
Semi-auto
|
| Gearbox version |
Gearbox v2
|
| Hop-Up |
Yes
|
| Inner barrel length [mm]. |
210
|
| Magazine capacity [pcs.] |
125
|
| MOSFET/ETU |
Yes
|
| Specna Arms Line |
COREā¢
|
| Quick Spring Change system |
Yes
|
| Type of plug |
DEANS / T-connect
|
| Type of thread on the barrel |
14mm CCW
|






















