• CAD render of the Kross Airsoft Design PTX magazine adapter in the angled M4 configuration
  • CAD render of the Kross Airsoft Design PTX magazine adapter in the straight M4 configuration
  • CAD render of the Kross Airsoft Design PTX magazine adapter in the straight MP5 configuration
  • CAD render of the Kross Airsoft Design PTX magazine adapter in the angled MP5 configuration, marked KAD
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Kross Airsoft Design PTX Magazine Adapter — M4 or MP5, Straight or Angled

Kross Airsoft Design PTX Magazine Adapter — M4 or MP5, Straight or Angled

£35.00
£35.00
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Type: M4 Straight

DETAILS

SKU: 2334303295
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Run a PTX from full-size rifle magazines. M4 or MP5, straight or angled — four combinations, one price.

Pistol-platform HPA lives or dies on magazine capacity. Stock pistol mags run out fast and cost real money to stack up, and the answer is to feed from something bigger. This adapter does that for the PTX.

Kross offer it in four cuts. M4 or MP5 decides which magazines you feed from — pick whichever you already own a drawer of. Straight or angled decides how the magazine hangs: straight sits square below the gun, angled tucks it back along your forearm so it stops catching on cover when you peek. If you play tight CQB, angled is the one.

It is printed in PLA+ 2.0 rather than machined, which keeps it light and keeps the price sensible.

Specifications

Specification Detail
Platform PTX
Magazine fitment M4 or MP5 — select above
Profile Straight or angled — select above
Material PLA+ 2.0
Recommended magazine PTS EPM1
Manufacturer Kross Airsoft Design
⚠ Kross list the fitment only as “PTX” and do not name a manufacturer. If you want fitment confirmed against your specific gun before ordering, ask us and we will check with them rather than guess.

Good to know

Kross recommend PTS EPM1 magazines for the cleanest feed. Other magazines of the same pattern generally work, but tolerances vary between brands and that is not something Kross document.

Frequently asked questions

Straight or angled? Angled if you play CQB and spend your time behind cover; straight if you shoot mostly in the open or prefer the magazine square under the gun.

M4 or MP5? Whichever you already own. Neither feeds better than the other — it is about the magazines in your bag.

Is a magazine included? No. This is the adapter.

💡 Titan Forge Airsoft tip: Pick the magazine pattern you already own before you pick the profile — buying into a second mag type costs more than the adapter does. See HPA adapters.