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Specna Arms SA-P20 Prime Aster II ETU AEG Assault Carbine - Chaos Bronze

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€448.50
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€448.50

Specna Arms SA-P20 Prime Aster II ETU AEG Assault Carbine - Chaos Bronze

Electric-powered replica of the SA-P20 assault carbine from the PRIME series, featuring a handguard inspired by the Daniel Defense RIS III version with the M-LOK system. Outfitted with a Specna Arms Dark Matter High Speed 27k brushless motor and the Gate Aster II Bluetooth control module for advanced customization of replica settings.

Nano Coated, Daniel Defence markings, M-LOK handguard

The body, fore grip, outer barrel, and receiver extension are crafted from metal. All screws and pins are constructed from steel. The pistol and vertical grips, stock, and magazines are produced from high-strength plastic, ensuring durability. The barrel features an anti-scratch Nano Coating for superior protection.

A 22 mm dorsal RIS rail provides the option to mount a variety of optoelectronic accessories. Factory-installed mechanical adjustable flip-up sights are included, featuring both a front and rear peep sight. For additional tactical gear, a replica Daniel Defense RIS III handguard utilizing the M-LOK system is equipped with a mounted front grip. An extendable stock, finished with a non-slip textured butt plate, offers customizable length to fit the shooter’s build and preferences. The set is supplied with two S-MAG-type polymer Mid-Cap magazines, each holding 125 BBs.

Lufa precyzyjna, rotacyjnaPrecision barrel, rotating Hop-Up chamberkomora Hop-Up

The SA-P20 comes standard with a TDC Magnus rotary Hop-Up chamber and a 6.02mm precision steel barrel. Its outer barrel is finished with a standard flash hider mounted on a 14-mm left-hand thread, which enables easy installation of a sound suppressor as an alternative.

Specna Arms Aether Gearbox

At the heart of the replica lies a V2 gearbox built on the robust Specna Arms Aether framework, featuring:

  • a mainspring release mechanism
  • pre-cocking and AoE observation windows
  • reinforced framework front section
  • inspection windows for straightforward arming
  • adjustable trigger functionality

On the inside, you will find components such as:

  • a reinforced polymer piston equipped with a full steel jaw
  • an aluminum piston head along with a cylinder head
  • spring guide mounted on bearings
  • a CNC-machined steel gearset with a 16:1 gear ratio
  • 8mm J-Cage ball bearings for the motor and piston pinion
  • 8mm plain bearings for the center pinion, accompanied by the Quantum Trigger 2 trigger
  • the Specna Arms Dark Matter High Speed 27k brushless motor

Dark Matter High Speed 27k brushless motor

The replica comes standard with a Dark Matter High Speed 27k high-end brushless motor, delivering enhanced power, rapid firing speed, outstanding reliability, and superior performance. Designed for use with extremely strong springs (up to M190), the motor offers high torque (approximately 27,000 RPM).

Key characteristics of the Dark Matter High Speed 27k brushless motor include:

  • high torque
  • optimized trigger response and a high TPA coefficient
  • significantly quieter operation
  • precision aluminum housing manufactured using CNC technology
  • lower energy consumption and reduced battery strain, resulting in greater performance
  • extended lifespan and minimized wear on internal components

Gate Aster II Bluetooth module

The SA-P20 comes outfitted with a Gate Aster II Bluetooth control unit paired with a Quantum Trigger 2, enabling full access to replica configuration and personalized settings. Compatibility is ensured for both brushed and brushless motors. The Aster II integrates a built-in fuse that safeguards the battery, gearbox, motor, and all electronics. Engineered to adhere to military standard MIL-V-173C, the system offers protection against challenging weather conditions. Key features of the Gate Aster II module include:

  • Quantum Trigger 2 with adjustable trigger sensitivity
  • Binary firing mode
  • Battery over-discharge protection
  • Pre-cocking function for enhanced trigger response speed
  • Active Brake system—each shot completes a full cycle, preventing gearbox stress from incomplete cycles
  • Sniper mode—includes sniper delay for realistic reload or recoil simulation
  • Bluetooth connectivity, allowing management via a dedicated mobile application

430 FPS

Configured for default operation, the replica delivers a firing velocity of 430 FPS. Featuring a upgraded, tool-free ESA 2 quick-change spring system, the unit enables straightforward adaptation of performance to suit various gameplay requirements. The package also includes both an M90 and M135 spring.

Set elements

  • Specna Arms SA-P20 Prime Aster II ETU AEG Assault Carbine - Chaos Bronze
  • Includes 2x Mid-Cap S-mag magazines
  • Comes with an additional m90 spring
  • Supplied with an extra m135 spring
  • Equipped with a speedloader
  • Contains a small tamiya to t-deans adapter

Main features

  • Nano coating finish
  • Daniel Defence logos
  • M-LOK compatible handguard
  • 6.02 mm high-precision barrel
  • Rotary Hop-Up TDC Magnus chamber
  • Enhanced Gearbox V2 Aether
  • Gate Aster II Bluetooth connectivity module
  • ESA 2 quick spring-change system
Specna Arms


Militaria.pl is a premium dealer of Specna Arms.


Specna Arms is a brand specialized in the production of ASG replicas, valued for their solid workmanship and value for money. The offered models are characterized by realistic appearance and high durability. The range includes a variety of series - from lightweight CORE™ models for beginners, through advanced EDGE™ models with metal bodies and licensed markings, to top PRIME™ replicas with brushless motors and modern electronics. The brand collaborates with renowned companies such as Rock River Arms and Daniel Defense. Specna Arms has a reputation among both beginners and advanced airsoft players.

More Information
Based on M4
Replica propulsion Electric
Muzzle velocity 430 fps
Accurate shot range Up to 50 m
Magazine type Mid-Cap
Magazine capacity 125 6 mm caliber BBs
Gearbox Reinforced
Body Metal and polymer
Overall length 830 mm
Weight 2640 g
Optics ready Yes
Fixed sighting devices Yes
Blowback No
Additional accessories included Yes
Accessory rail Yes
Hop-up Yes, adjustable
Plug type Deans/T-Connect
EAN 5902543887528
Manufacturer code SPE-01-043641-00
Brand Specna Arms

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Number of reviews: 1

  1. A...
    100%

    A very successful replica. High quality materials. The operation, construction and workmanship are very close to the original with live ammunition. A great option for fun and learning.

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