Tokyo Marui Keltec KSG to M4 Adapter - 2026 Edition
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Updated 2026 edition with better fitment and a high-quality, near indestructible, injection moulded polycarbonate M4 magwell.
These adapters allow you to use M4 AEG magazines in your Tokyo Marui KSG
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Recessed mag release preventing accidental mag drops
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Internal BB latch that stops BBs coming back out of adapter on mag change (only drops 2 BBs)
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Compatible with most M4 mags, designed for EPM1/Krytac/Nuprol/ICS
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Massively improves the skirmish-ability of your KSG
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Two part construction allows easy installation. Simply remove the two large pins from your KSG lower, remove, place the shell tube part into the KSG, re install the KSG lower and screw the M4 mag-well into the shell tube part (screws included).
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Wings on the outside of the mag-well add stability and prevent wobble within the KSG
Your adapter will come with a number of shims that can be used to ensure snug fitment of your M4 magazine.
DO NOT EXCEED 150PSI WITH ANY AIRSOFT HPA ADAPTER.
ALWAYS USE AIR REGULATED BY A SECONDARY REGULATOR (EG AT200, WOLVERINE STORM, POLARSTAR MRS).
CHECK YOUR PSI BEFORE CONNECTING AIR TO A HPA ADAPTER.
NEVER CONNECT OUR EQUIPMENT TO PAINTBALL AIR TANKS OR CO2 TANKS.
NEVER CONNECT OUR EQUIPMENT TO A TIPPMAN STYLE HPA LINE
Plug and Play
This adapter is ready to go out of the box. Valve, feed lips, and gas router are already fitted to the adapter. You do not need to use any donor parts.No assembly is required.
Compact MP5
M4 Adapter Information
- Injection moulded from polycarbonate, this magwell is near indestructible!
- Compatible with most airsoft M4 magazines.
- We recommend EPM1/EPM1s magazines as they have excellent fitment and strong springs.
- Magazines advertised as Fast Feed such as the original EPM or Amarok magazines will also work well
- BB retention means only 2-3 BBs are dropped when changing mag
- A swappable rear shim is included
