Description
High-Performance HPA Airsoft Rifle: Poseidon PUNISHER+ with Polarstar Jack – Black
Take your airsoft setup to the next level with the Poseidon PUNISHER+ HPA Rifle with Polarstar Jack. Combining a purpose-built M4-style platform with a factory-fitted Polarstar Jack HPA engine, this rifle offers responsive operation, adjustable trigger characteristics and the flexibility of an HPA-powered system.
Finished in black, the PUNISHER+ combines a lightweight nylon and polymer body with practical controls, folding sights and a comfortable, non-slip pistol grip. It is an appealing option for players looking for a dedicated HPA rifle without having to convert a conventional AEG themselves.
Factory-Fitted Polarstar Jack HPA Engine
The PUNISHER+ comes with a Polarstar Jack HPA engine already installed, giving you a purpose-built HPA setup rather than a standard electric gearbox conversion. The system supports semi-automatic and full-automatic firing, with an adjustable trigger to help tailor the feel to your preference.
Important: This rifle requires both compressed air and a small HPA battery. The battery fits inside the pistol grip and powers the engine’s electronic control system. Although the rifle uses HPA rather than a conventional AEG motor and gearbox, it is not battery-free.
To operate the rifle, you will also need a compatible HPA tank, regulator and air line. These connect to the rifle’s HPA system and allow the operating pressure to be set appropriately for your setup and site limits.
Practical M4-Style Design
The PUNISHER+ features a durable nylon and polymer M4-style body designed to keep the platform practical for regular skirmish use. Its non-slip pistol grip provides a secure hold, while the vertical-style trigger offers a distinctive feel compared with a conventional M4 trigger setup.
The ambidextrous fire selector makes operation convenient for both left- and right-handed players. A batwing-style charging handle and folding polymer M-style sights complete the rifle’s functional design.
220-Round M4 Mid-Cap Magazine
A 220-round M4-style mid-cap magazine is included, giving you a useful starting capacity for skirmishing. The M4-style magazine format also makes it practical to explore compatible spare magazines, provided compatibility is confirmed before purchase.
The rifle uses standard 6mm airsoft BBs. Choose a suitable BB weight for your setup and follow your airsoft site’s guidance when checking the rifle’s power and accuracy.
What Else Do You Need?
If this is your first HPA rifle, remember to budget for the supporting equipment. The rifle’s Polarstar Jack engine is installed, but the following items are required to operate it:
- HPA tank: Stores the compressed air used to power the rifle.
- HPA regulator: Regulates the air pressure supplied to the engine.
- HPA air line: Connects the regulator to the rifle.
- Small HPA battery: Fits inside the pistol grip and powers the engine’s electronics.
- Compatible charger: Required to recharge the battery, if not already owned.
Please check the contents of the package and battery compatibility before ordering any additional equipment. Do not assume that the tank, regulator, line, battery or charger is included unless explicitly stated in the product package details.
Technical Specifications
| Brand | Poseidon |
| Model | PUNISHER+ |
| Colour | Black |
| Platform | M4-style HPA airsoft rifle |
| Power System | High-Pressure Air (HPA) |
| HPA Engine | Polarstar Jack, factory fitted |
| Battery Requirement | Small HPA battery, fitted inside the pistol grip |
| Fire Modes | Semi-automatic and full-automatic |
| Trigger | Adjustable vertical-style trigger |
| Body Construction | Nylon and polymer |
| Magazine Capacity | 220 rounds |
| Magazine Type | M4-style mid-cap |
| Ammunition | 6mm airsoft BBs |
| Sights | Folding polymer M-style sights |
| Fire Selector | Ambidextrous |
Key Features
- Factory-fitted Polarstar Jack HPA engine
- Responsive HPA operation with semi-automatic and full-automatic firing modes
- Adjustable trigger characteristics
- Small HPA battery fits inside the pistol grip
- Lightweight nylon and polymer M4-style body
- Ambidextrous fire selector
- Batwing-style charging handle
- Folding polymer M-style sights
- 220-round M4-style mid-cap magazine included
- Black finish
What’s Included?
- Poseidon PUNISHER+ HPA Rifle with Polarstar Jack – Black
- One 220-round M4-style mid-cap magazine
HPA equipment and battery: A compatible HPA tank, regulator, air line and small HPA battery are required for operation. Check the package contents before purchase to confirm which accessories, if any, are supplied.
The BR Airsoft Pro Take
The Poseidon PUNISHER+ is worth considering for players who want to move to HPA without building a rifle from separate components. With the Polarstar Jack already installed, an adjustable trigger and practical M4-style controls, it offers a straightforward starting point for a dedicated HPA setup.
Just remember that HPA does not mean completely battery-free. You will need a small battery inside the pistol grip as well as the external air system. Once you have the correct equipment, the PUNISHER+ provides a flexible platform that can be configured to suit your preferred style of play, subject to your site’s rules.
UK Airsoft Use and Site Compatibility
HPA rifles must be set up responsibly and checked against the limits of the site where they will be used. Always use a suitable regulator, check the system for leaks and chronograph the rifle with the BB weight you intend to use. Follow your site’s requirements for power limits, rate of fire, minimum engagement distances and semi-automatic restrictions.
For UK purchase, the black rifle is a realistic imitation firearm (RIF). Buyers must meet the applicable legal requirements for purchasing a RIF, including having an appropriate defence where required. If you are unsure which documentation applies to your circumstances, check with BR Airsoft before ordering.
Frequently Asked Questions
Does the Poseidon PUNISHER+ need a battery?
Yes. This Polarstar Jack version requires a small HPA battery that fits inside the pistol grip. It powers the engine’s electronics.
Does it need an HPA tank as well?
Yes. The rifle is powered by compressed air, so you will need a compatible HPA tank, regulator and air line. These are separate from the small battery required by the engine.
Is the Polarstar Jack engine already installed?
Yes. The rifle is supplied with the Polarstar Jack HPA engine factory fitted, so you do not need to carry out a separate engine installation.
What firing modes does it have?
The Polarstar Jack system supports semi-automatic and full-automatic firing. Your site’s rules may restrict which modes can be used during a game.
What magazine comes with the rifle?
One 220-round M4-style mid-cap magazine is included.
Can I use other M4 magazines?
Potentially, but compatibility can vary between magazine designs. Check fit and feeding before relying on a different magazine for a game.
Can I adjust the rifle’s power?
HPA output can be adjusted through the regulator setup, within safe operating limits. Make adjustments responsibly and chronograph the rifle before use to confirm compliance with your site’s rules.
Is the HPA tank included?
Do not assume it is included. A compatible tank, regulator and air line are required to operate the rifle, so check the package contents and arrange any missing equipment separately.
Get Your Poseidon PUNISHER+ from BR Airsoft
Looking for a factory-fitted HPA rifle with a Polarstar Jack engine and practical M4-style handling? The Poseidon PUNISHER+ HPA Rifle in Black is a strong option to consider. Make sure you have the required HPA equipment and small pistol-grip battery ready, then get your setup prepared for your next skirmish.
Shop BR Airsoft for your airsoft rifles, HPA equipment, magazines and essential accessories.





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