KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle
KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle
KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle
KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle
KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle
KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle
KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle
KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle
KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle
KA Tech AX - 15 HPA Polarstar F2 AK47 - KA Tech Airsoft - Airsoft HPA Rifle

KA Tech AX-15 HPA Polarstar F2 AK47

$1,700.00
Polarstar HPA Engines

Which Polarstar HPA Engine Should You Choose?

All FPS figures are measured with our standard 180mm 6.02 inner barrel and KA Tech's tuned hop-up, bucking, and regulator combination.

Kythera

250–400 FPS · 350 FPS @ ~100 PSI · Semi-auto only

Purely mechanical — no electronics, no full-auto. Just air, BBs, and go, with a realistic trigger pull, break, and reset. Great for training, Milsim, or fields that are hesitant about HPA rifles.

Jack

250–410 FPS · 350 FPS @ ~100 PSI · Up to 50 RPS full-auto

Our entry-level HPA engine. Fast semi-auto with real full-auto capability.

F2

250–440 FPS · 350 FPS @ ~100 PSI · Up to 85 RPS full-auto

The best overall HPA engine on the market — the strongest combination of air efficiency, accuracy, range, consistency, and tune-ability.

Fusion Engine

250–500 FPS · 350 FPS @ ~55 PSI · Up to 75 RPS full-auto

The powerhouse. A clicky tactical trigger board delivers crisp trigger response for players who want the most power out of their rifle.

Our recommendation: First time going HPA? Go with the Fusion Engine. If you're committing real money to get into HPA, go all the way the first time so you're not stuck upgrading piece by piece down the road.

Up to 45 business days

Production starts the moment you order. Cancel any time before it begins for a full refund — no fee.

Backed by KA Tech Warranty
HPA Specialists Since 2022
Trade in anytime — up to 70% back in store credit
3-month labor warranty — you only pay for parts
Description

Every KA Tech rifle is built on internals and tuning we’ve spent the last four years perfecting. Our performance packages are the industry standard everyone else is chasing — if you want something that’s going to outperform everything else on the field, this is it.

The KA Tech AX-15 is a truly unique hybrid — part AK, part AR — built for players who want the reliability and look of an AK platform with the ergonomics of an AR. Super tactical, and unlike anything else in the lineup.

This rifle is built with top-tier internals and premium external components to give players a true performance advantage — fully kitted out and ready to run straight out of the box.

  • Full reinforced polymer body
  • Polarstar F2 HPA engine
  • OEM Centered Hopup Unit with centered nub
  • Hotshot bucking
  • Crazy Jet inner barrel
  • AK/AR hybrid platform design
  • Comes with all attachments included

Attachment loadout and specific requests can always be customized — just reach out.

Buying a KA Tech rifle isn’t where our relationship ends — it’s where it starts. Think of us as the best HPA technicians in the country, in your pocket, 24/7. Want to change your FCU tune? Swap parts? God forbid something goes wrong? We want to be the first call you make for anything HPA-related. When you buy a KA Tech rifle, you’re not just getting the best build on the field — you’ve got a full tech team behind every move you make.

Internal Parts

  • HPA Engine: Polarstar F2
  • Hop-Up: OEM Hopup Unit
  • Nub: Centered nub
  • Bucking: Hotshot
  • Inner Barrel: Crazy Jet
  • FCU: Fully tuned FCU
  • Battery: Sold separately

Performance

  • Polarstar F2 reference spec: 400 FPS @ 100 PSI, up to 50 RPS full-auto
  • Firing Modes: Semi / Full-Auto

External Parts

  • Receiver: Full reinforced polymer, AK/AR hybrid platform
  • Attachments: Comes with all attachments included
  • Airline: Weaved & filtered internal grip line (IGL)
  • Production: Built to order — begins immediately upon purchase
  • Estimated Ship Time: Up to 45 business days (often less)
  • Need It Faster: Contact us to check current in-stock availability
  • Delayed Orders: If we can't meet this window, you may cancel for a full refund — no fee
  • Polarstar Manufacturer Warranty: 1 year on Polarstar components (engine, regulator, etc.)
  • KA Tech Labor Warranty: 3 months, 100% labor covered — you only pay for parts
  • Warranty Activation: Requires watching our 2-minute HPA do's & don'ts video
  • Cancellations: Accepted any time before shipping; 30% restocking fee applies once production has begun
  • Trade-Ins: 70% store credit / 50% cash refund if like-new, 60% store credit / 40% cash refund if used