Colt x Daniel Defense MK18 SA-P19 PRIME BLDC 10.5" AEG Assault Rifle
The Colt x Daniel Defense MK18 SA-P19 PRIME BLDC 10.5" AEG is a premium, compact airsoft rifle designed for players who demand exceptional trigger response, reliable high-speed operation and authentic military styling. Manufactured by Specna Arms under licence from Cybergun and EMG, it features official Colt and Daniel Defense markings for an accurate, realistic finish.
Built around the advanced Specna Arms PRIME™ platform, this licensed MK18 airsoft rifle combines a Dark Matter™ brushless motor, reinforced AETHER™ gearbox, MAGNUS™ TDC hop-up chamber and factory-installed GATE ASTER II Bluetooth® ETU. The result is a highly responsive AEG that is ready for demanding CQB games, outdoor skirmishes and immersive milsim scenarios straight out of the box.
Browse more premium models in our airsoft gun collection or discover the complete range of Specna Arms airsoft rifles.
Dark Matter™ Brushless Motor Performance
At the heart of the SA-P19 PRIME is a Specna Arms Dark Matter™ High Speed 27–35K brushless motor. Unlike conventional motors, its BLDC™ design eliminates traditional carbon brushes, significantly reducing friction, heat and mechanical wear.
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Immediate trigger response for fast semi-automatic follow-up shots
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High starting torque for reliable operation with stronger springs
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Efficient power consumption for improved battery performance
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Lower heat generation during sustained firing
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Quiet and smooth operation with reduced mechanical noise
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No brush sparking and fewer internal wear components
- Stable performance at high speed
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Longer service life than traditional brushed motors
This configuration provides the rapid cycling and crisp response expected from a high-end brushless airsoft rifle, while maintaining the torque required for demanding field setups.
GATE ASTER II Bluetooth® Electronic Trigger Unit
The factory-installed GATE ASTER II Bluetooth® ETU provides advanced control over the replica’s firing characteristics. Compatible with both brushed and brushless motors, the unit allows players to configure and monitor the rifle using the GATE Control Station application.
ASTER II Bluetooth® Functions
- Binary trigger mode
- Adjustable pre-cocking
- Active Brake
- Sniper mode
- Low-battery warning
- Motor and battery protection
- Brushless motor compatibility
- Bluetooth® connection to the mobile application
- Diagnostics, telemetry and performance monitoring
The SolarTrigger™ trigger mechanism by GATE complements the electronic system, delivering precise detection and a responsive, adjustable trigger feel.
AETHER™ Reinforced Gearbox
The reinforced AETHER™ gearbox shell has been engineered to provide excellent durability, serviceability and component alignment. Reinforcements have been added to the most heavily stressed areas, while dedicated inspection windows make maintenance and internal tuning easier.
AETHER™ Gearbox Features
- Anti-reversal latch release and inspection window
- Pre-cocking inspection window
- Angle of Engagement inspection window
- Motor gear inspection window
- Adjustable trigger travel
- Reinforced high-stress sections
- Screw holes for precise gearbox shell alignment
Premium Internal Components
- Reinforced polymer piston with a full steel tooth rack
- Aluminium piston head, cylinder head and sealed nozzle
- Steel cylinder
- Steel spring guide with bearings
- CNC-machined steel gears with a 16:1 ratio
- 8 mm J-Cage ball bearings on the bevel and sector gears
- 8 mm plain bearings on the central gear
- Dark Matter™ 27–35K brushless motor
- GATE ASTER II Bluetooth® ETU
MAGNUS™ TDC Hop-Up and 6.02 mm Precision Barrel
The SA-P19 PRIME is equipped with a MAGNUS™ TDC rotary hop-up chamber. Its Top Down Centre adjustment system applies pressure directly from above, helping produce a stable, repeatable BB trajectory and allowing extremely precise hop adjustment.
A HELIUM™ Flat Hop bucking improves BB spin consistency, particularly when using heavier ammunition. Combined with the 6.02 mm stainless-steel precision inner barrel, the system provides excellent accuracy, range and shot-to-shot consistency.
For the best performance, pair the rifle with high-quality ammunition from our airsoft BB collection.
Tool-Free ESA2™ Quick-Change Spring System
The improved ESA2™ quick-change spring system allows the rifle’s power to be adapted quickly for different field limits without removing the gearbox or using specialist tools. This makes it easy to switch between indoor CQB configurations and more powerful outdoor setups.
The package includes both an M90 spring and an M135 spring, giving players greater flexibility when preparing the replica for different game environments. Always check local field limits before installing a higher-powered spring.
Licensed MK18 Construction
The compact 10.5-inch MK18 configuration offers excellent manoeuvrability in buildings, vehicles and confined spaces while remaining effective in woodland and urban outdoor games. The body is protected by a durable scratch-resistant Nano Coating and carries a unique serial number supported by an authenticity hologram.
- Official Colt and Daniel Defense licensed markings
- Compact 10.5-inch MK18 configuration
- Scratch-resistant Nano Coating
- Unique serial number and authenticity hologram
- 14 mm CCW threaded outer barrel
- Folding front and rear sights
- Included vertical foregrip
- Two included mid-cap magazines
Package Contents
- Colt x Daniel Defense MK18 SA-P19 PRIME BLDC AEG
- 2 x mid-cap magazines
- Vertical foregrip
- BB speedloader
- Cleaning rod
- M90 spring
- M135 spring
- Small Tamiya to Deans adapter
Battery and charger are not included. Compatible batteries and charging equipment are available in our airsoft batteries and chargers collection.
Technical Specifications
| Manufacturer |
Specna Arms |
| Model |
SA-P19 PRIME BLDC |
| Platform |
Colt x Daniel Defense MK18 |
| Power System |
AEG electric |
| Barrel Length |
10.5 inches |
| Motor |
Specna Arms Dark Matter™ Brushless High Speed 27–35K |
| Electronic Trigger Unit |
GATE ASTER II Bluetooth® |
| Trigger |
GATE SolarTrigger™ |
| Gearbox |
Reinforced AETHER™ V2 |
| Gear Ratio |
16:1 CNC-machined steel gears |
| Bearings |
8 mm J-Cage ball bearings and plain bearings |
| Hop-Up |
MAGNUS™ TDC rotary chamber |
| Hop-Up Bucking |
HELIUM™ Flat Hop |
| Inner Barrel |
6.02 mm stainless steel precision barrel |
| Spring System |
ESA2™ tool-free quick-change system |
| Included Springs |
M90 and M135 |
| Outer Barrel Thread |
14 mm CCW |
| Magazines |
2 x mid-cap |
| Battery and Charger |
Not included |
Why Choose the SA-P19 PRIME MK18?
The Specna Arms Colt x Daniel Defense MK18 PRIME brushless AEG is built for players who want premium performance without immediately replacing factory components. Its compact licensed body, high-speed brushless motor, advanced Bluetooth ETU, reinforced gearbox and precision hop-up assembly make it a powerful choice for competitive CQB, outdoor skirmishing and realistic milsim loadouts.
With fast trigger response, excellent mechanical efficiency and extensive electronic adjustment, the SA-P19 PRIME delivers the smooth, dependable performance expected from one of Specna Arms’ most advanced AEG platforms.
