M4/AR15-AEG'er med standard V2-gearboks og bagudført ledningsnet (batteri i kolben). Med "ny gearkasse-skal" bevares din originale gearboks komplet.
HPA Build Kit for M4 AEG (V2 Gearbox)
Drop-in HPA-enhed i V2-gearboksen. Skarp aftrækker og justerbar kraft og kadence via FCU. Indstilles til banens grænse ved montering.
Site limit: FCU sættes til FA ≤ 129,9 m/s
Cheaper than buying the 4 parts separately.
Awaiting parts – coming soon
Cheaper than buying the 5 parts separately.
Awaiting parts – coming soon
Cheaper than buying the 4 parts separately.
In stock in Aulum, Denmark – 2 sets
Cheaper than buying the 5 parts separately.
In stock in Aulum, Denmark – 2 sets
Fitting costs a fixed 500 kr and is paid together with the kit. Turnaround is 2–3 weeks from when we receive your gun. If any of your gun's original parts are worn, we'll contact you before replacing anything.
- 2-year warranty on new parts
- Chronograph reading in m/s when fitted
What's in your kit
Click a part to read more about it.
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Regulator + lineHank Tactical Regulator + LineDelivers stable pressure from the tank to the engine
799 kr
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Air tankBalystik 0.8L Air TankThe air supply for the HPA engine
449 kr
-
HPA engineSparkLabs Wolf HPA V2Replaces the gearbox internals – power and rate of fire are set in the FCU
4.299 kr
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BatteryHank Tactical 7.4V LiPo, 300 mAhPowers the engine's electronics
89 kr
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Regulator + lineHank Tactical Regulator + LineDelivers stable pressure from the tank to the engine
799 kr
-
Air tankBalystik 0.8L Air TankThe air supply for the HPA engine
449 kr
-
HPA engineSparkLabs Wolf HPA V2Replaces the gearbox internals – power and rate of fire are set in the FCU
4.299 kr
-
BatteryHank Tactical 7.4V LiPo, 300 mAhPowers the engine's electronics
89 kr
-
Gearbox shellGearbox Version 2 for 8 mm BearingsA new shell for the HPA engine, so your original gearbox is kept intact
179 kr
-
Regulator + lineHank Tactical Regulator + LineDelivers stable pressure from the tank to the engine
799 kr
-
Air tankBalystik 0.8L Air TankThe air supply for the HPA engine
449 kr
-
HPA engineStorm HP-R HPA UnitReplaces the gearbox internals – power and rate of fire are set in the FCU
2.499 kr
-
BatteryHank Tactical 11.1 V LiPo, 1000 mAh, Stick, DeansPowers the engine's electronics
229 kr
-
Regulator + lineHank Tactical Regulator + LineDelivers stable pressure from the tank to the engine
799 kr
-
Air tankBalystik 0.8L Air TankThe air supply for the HPA engine
449 kr
-
HPA engineStorm HP-R HPA UnitReplaces the gearbox internals – power and rate of fire are set in the FCU
2.499 kr
-
BatteryHank Tactical 11.1 V LiPo, 1000 mAh, Stick, DeansPowers the engine's electronics
229 kr
-
Gearbox shellGearbox Version 2 for 8 mm BearingsA new shell for the HPA engine, so your original gearbox is kept intact
179 kr
How fitting works
Turnaround is 2–3 weeks from when we receive your gun.
- Order the kit and fittingEnter your gun model and gearbox, and tick the box about the right of withdrawal.
- Drop off or send your gunAt our shop in Aulum, Denmark, or with a shipping label. Return shipping is free.
- We build and measureChronograph reading in m/s with your BB weight, and test firing.
- Get your gun backFixed price 500 kr, paid when you order. We return it free of charge, or you can collect it from the shop.
About the kit
The HPA kit converts your M4 from an electric gearbox to HPA. You get a drop-in HPA engine for the V2 gearbox, a regulator with line and a 0.8 L air tank – everything you need to get started. The result is a crisp trigger, no gears to wear and power and rate of fire that can be adjusted digitally.
Choose between our go-to engine, the SparkLabs Wolf, and the more affordable Storm HP-R. With a new gearbox shell, the HPA engine goes into a new V2 shell, so your original gearbox stays complete and can be refitted. You can fit the kit yourself, or let our workshop assemble and test it. When we fit it, we chronograph the velocity and record m/s and BB weight, so the gun stays within the site's limits.
Drop-in HPA with adjustable power and rate of fire
- SparkLabs Wolf V2 or Storm HP-R: The Wolf has an electromagnetically driven nozzle, open or closed bolt and a self-calibrating FCU. The Storm HP-R has a digital FCU with display and an adjustable nozzle, and fits a standard V2 with rear-wired harness.
- Hank Tactical regulator with 40" line: A compact regulator that brings the pressure from the tank down to a level the HPA engine can work with. The line gives room to carry the tank on your body.
- BalystiK 0.8 L air tank: An aluminium tank with a reinforced steel base and a volume of 0.8 L (48 ci).
- Battery for the engine: The Wolf runs on a Hank Tactical 7.4 V LiPo with JST connector. The Storm HP-R requires an 11.1 V LiPo with Deans connector. The right battery is included in the kit.
- New gearbox shell (optional): Keeps your original gearbox complete, so you can go back to AEG if you want.
Maintenance and safety
- Always close the tank and depressurise the system before disconnecting the line, regulator or replica
- Air tanks must be filled and pressure-tested in accordance with the regulations that apply to you – never fill above the tank's approved pressure
- Power and rate of fire are set in the FCU and with the regulator. Always measure velocity with a chronograph, and stay within the site's limits
- Keep O-rings and fittings clean, and check the line for wear and kinks regularly
- Always wear approved eye protection during play and testing
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