SA M4 Keymod Gen2 Airsoft Rifle (SA-C09 CORE™ HAL ETU™) – Black / Tan

AEG airsoft assault rifle M4 Keymod (SA-C09) from the CORE™ Gen2 series by Specna Arms in black and tan.

Nylon M4 / AR15 body reinforced with fiberglass.

CNC metal Keymod handguard.

Upgraded internal parts of the CORE Gen2 series with 120 m/s velocity out of the box.

HAL ETU™ electronic processor unit.

Reinforced QSC AETHER™ V2 gearbox.

MAGNUS™ TDC hop-up chamber.

Technical Specifications

• Power type: AEG
• Material: Nylon, metal, polymer
• Overall length: 795–880 mm
• Weight: 2415 g
• Muzzle velocity: 120 m/s (1.48 J)
• Inner barrel length: 375 mm
• Inner barrel diameter: 6.03 mm
• Hop-up: Adjustable, TDC
• Fire modes: Semi, Full Auto
• Barrel thread: 14 mm CCW
• Handguard: Keymod
• Recommended battery: 11.1V Li-Pol (not included)
• Connector: T-Dean
• Battery type: Crane (Buffer stick, Nunchuck)
• Magazine capacity: 125 BBs (Mid-Cap)
• Motor type: Brushed

Package Contents

• Specna Arms M4 Keymod Gen2 AEG rifle
• 2× S-MAG magazines (125 BBs)
• Folding iron sights
• 3× RIS rails for Keymod
• T-Dean to small Tamiya adapter
• Spare weaker spring (M90) for CQB
• Specna Arms stickers
• User manual

Warning

• Some manufacturers’ springs are overrated (e.g. M130 may equal M140–150). Use Specna Arms springs only, or choose M120 springs from other brands.
• When installing progressive springs, ensure the tighter coils face outward from the gearbox.
• Never store the replica with the battery connected.

Initial Setup

To start using the rifle, the HAL ETU unit must be activated by following this exact procedure, otherwise the replica will not respond to a connected battery:

1. Set the selector to Safe.
2. Connect the battery and wait 3 seconds until you hear a beep.
3. Pull and hold the trigger for 5 seconds until another beep sounds.
4. The replica is now ready for use.