M4 Sierra Blue | Colt

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Colt M4 Sierra Blue 1J - Innovation and Power in Compact Format

The Colt M4 Sierra combines power with a compact design, making it a perfect choice for fast and intense CQB situations. Available in striking blue, classic black and bold red, and featuring a short handguard and PDW stock for flexibility and convenience. Compatible with a 7.4V LiPo battery, this replica offers everything you need for maximum performance on the playing field.

Durable Innovations for Reliability

  • Steel teeth on the piston for long-lasting performance even under heavy use
  • 8 mm bearings ensure smooth and smooth operation
  • Quick change spring for efficient adjustments to your playing style
  • Mosfet system with advanced magnetic sensor for precise and responsive control


With multiple picatinny rails, the Colt M4 Sierra is ideal for customising and expanding your kit so you're always ready for action. From front grip to optics, the possibilities are endless.

Extras and Realism

  • Official Colt markings for an authentic look
  • Reinforced internal components for consistent performance
  • PDW stock with 6 positions for added ease of carry and precision
  • Includes short front grip for improved control during aiming and shooting
  • Aluminium casing for a robust and durable design

Note: this replica comes without battery and charger, so you can choose the perfect combination for your playing style.

Colt - A Legendary Story

Ever since its founding in 1832, Colt has been known for innovation and reliability. The invention of the iconic revolver changed the landscape of firearms forever. From the first Colt Paterson in 1836 to the famous Colt 1911 and the legendary M16 assault rifle, Colt remains a leading brand for both the military and civilian markets.

Technical Specifications

  • Brand: Cybergun
  • Licence: Colt
  • Colour: Blue
  • Calibre: 6mm
  • Weight: 2.545 kg
  • Power: 1 Joule
  • Speed: 330 FPS (with 0.20g BBs)
  • Hop-up: Adjustable Hop-up
  • Material: Metal
  • Length: 645 mm
  • Barrel diameter: 6.05 mm
  • Thread: 14mm CCW
  • Magazine capacity: 300 BBs
  • Connector: Mini Tamiya
  • Mosfet: yes
  • Motor shaft: Long shaft
  • Gearbox: V2


With the Colt M4 Sierra Blue, you get a modern and reliable weapon ready for any scenario. Whether you're looking for performance or a piece of history, the M4 Sierra offers it all.

More Information
SKU 180025
Weight (KG) 2.55
Product Type Assault rifles (AR)
Color Black
Platform M4 / AR15
Licensed by Colt
Power Source AEG
Blowback No Blowback
Joules (maximaal) 1.00
FPS (Feet per Second) 330
Firing Mode Semi-automatic and full automatic
Material Metal
Length (cm) 64.50
Barrel thread 14mm - CCW
Top rail type Picatinny
Mounting Rail Type Picatinny
Magazine Capacity 300
Battery LiPo, Stick, 11,1v
Connector Mini Tamiya
Gearbox Type Version 2
Adjustable Adjustable front and rear sights, Adjustable stock, Foldable stock, Adjustable hop-up
Extra options Front and rear sight, With MOSFET, Safety
Brand Colt
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Need help?
Our customer service is available Monday to Friday from 10:00 AM to 5:00 PM CEST.
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