Specna Arms x KPYK SA-PJ12 PRIME Aster ETU BLDC Airsoft Carbine
The SA-PJ12 PRIME™ Aster ETU BLDC™ is a cutting-edge collaboration between Specna Arms and the Ukrainian engineering team at KPYK. Built for demanding field play, this next-generation J-Series PRIME™ carbine delivers exceptional durability, top-tier ergonomics, and out-of-the-box performance with no tuning required.
Premium Construction
Robust steel externals provide authentic weight, field durability, and a professional finish. Key steel components include the barrel, breech chamber cover, trigger guard, selector, magazine catch, gas tube, folding stock, and more. The receiver features a Nano Coating surface to resist scratches during intense use.
- KPYK CRC 1U004 gas tube cover for rugged reliability
- Modern CNC-machined handguard with integrated M-LOK slots
- Picatinny top rail for reliable optic mounting
PRIME Internal Performance
The PRIME™ line represents Specna Arms at the peak of internal engineering. The SA-PJ12 is equipped with elite components designed for reliability, speed, and precision straight out of the box:
-
GATE ASTER V3 advanced programmable ETU with high trigger sensitivity
-
DarkMatter High-Speed BLDC Motor 27–35K for explosive acceleration
-
Magnus TDC Hop-Up Chamber with Helium Flat Hop Eraser for exceptional accuracy
- Steel 16:1 CNC gears on 8mm bearings for smooth, durable operation
- 6.02 mm precision inner barrel for stable BB trajectory
-
ESA2 Quick Spring Change system for rapid field tuning
- Reinforced piston with steel rack for longevity under high-speed operation
- Steel cylinder + aluminium heads + aluminium nozzle for a perfect air seal
- Includes M90 and M135 springs; factory configuration optimized for reliable daily operation
GATE ASTER V3 – Advanced Electronics
The integrated ASTER V3 system delivers elite-level control, safety, and responsiveness:
- Auto pre-cocking and enhanced cycle detection
- Unlimited trigger sensitivity adjustment
- Trigger programming via selector
- Adaptive / 100% / 60% / Brushless / OFF active brake modes
- Reverse polarity protection and multi-layer PCB durability
- Compatible with Blu-Link / USB-Link for advanced configuration
- Lowest standby consumption on the market (0.29 mA)
Ready for Any Mission
Designed to excel in Milsim realism and high-level competition, the SA-PJ12 PRIME™ offers:
- Space for a stick-type battery under the breech cover
- Folding steel stock for compact transport and stability
- Dovetail side rail for eastern-style optics
- Rugged steel construction for field durability
Discover how this rifle performs in real-world scenarios at the airsoft field or CQB arena. For broader options, explore our airsoft rifles collection
Specifications
| Model |
SA-PJ12 PRIME Aster ETU BLDC Carbine |
| Manufacturer |
Specna Arms x KPYK |
| Internal Electronics |
GATE ASTER V3 ETU; Blu-Link / USB-Link ready |
| Motor |
DarkMatter High-Speed BLDC 27–35K |
| Gear System |
Steel 16:1 CNC gears on 8mm bearings |
| Barrel |
6.02 mm precision inner barrel |
| Spring System |
ESA2 Quick Spring Change; M90/M135 springs included |
| Exterior |
Steel externals; Nano Coating receiver |
| Stock |
Folding steel stock |
| Rail System |
M-LOK handguard; Picatinny top rail |
| Battery |
Space for stick-type battery under breech cover |
| Brand |
Specna Arms x KPYK |
| Model |
SA-PJ12 PRIME™ |
| Series |
PRIME™ J-Series |
| Construction |
Steel, aluminium, polymer |
| Hop-Up |
Magnus™ TDC + Helium™ Flat Hop |
| Inner Barrel |
6.02 mm precision |
| Motor |
DarkMatter™ BLDC High Speed 27–35K |
| Gear Ratio |
16:1 CNC steel gears |
| Bearings |
8mm J-Cage + slide bearing |
| Electronics |
GATE ASTER V3 ETU |
| Quick Spring Change |
ESA2™ System |
| Magazine Type |
Mid-cap S-MAG |
| Included Magazines |
2 × S-MAG |
| Additional Springs |
M90 + M135 |
| Stock |
Folding steel stock |
| Battery Connector |
Small Tamiya (adapter to Deans included) |
| Battery / Charger |
Not included |
