This product is in beta. We do not anticipate any issues as it has been rigorously tested across SSX23/303 and ASG MK23

Revolutionise your stealth gameplay

The ultimate HPA adapter for MK23

This adapter transforms your replica by routing BBs to the nozzle from an AEG magazine (M4 or MP5) mounted on the accessory rail or handguard of your MK23/SSX303. A lightweight HPA unit replaces your gas magazine, giving you unparalleled consistency and capacity.

This kit puts the magazine in the perfect place for holstering and use as a rifle (maybe in a carbine kit!).

Learn more on our product landing page

Compatibility

• All MK23 clones, SSX23 and SSX303
• M4 Version - All strong feeding M4 AEG magazines
• MP5 Version - Any Metal CYMA MP5 Midcap
• US Foster Fitting as standard

Materials

• M4 Magwell - Injection Moulded Polycarbonate
• MP5 Magwell - CNC Aluminium
• HPA Section, Trigger Guard - SLS PA12 Nylon 

Assembly Instructions

VIDEO INSTRUCTIONS COMING SOON

• Remove the pin holding in your magazine release using a hammer and punch
• Remove the pin holding in the lanyard loop plate at the rear bottom of the pistols grip -- two small pieces of plastic will then drop out, these are not needed.
• MK23 - Slide the magwell section over the pistols accessory rail
  
• SSX303 - Secure the magwell to the rifles handguard using the included M-LOK screw
• Insert the BB 'trigger guard' into the hole left by removing the magazine release, seating it up against the pistols trigger guard 
• MK23 - Using the two included screws, screw the trigger guard onto the magwell section -- You can tighten until the gap is closed.
• Use the included M5 screw in the trigger guard screw hole to 'pull' the magwell towards the pistol, keeping everything secure.
• Insert the HPA section into the pistols grip, ensuring the grooved rear section engages with the guide rails in the pistols frame
• Use the lanyard loop plate pin to hold the HPA section in place
• You are now ready to go! Insert an M4 or MP5 magazine and BBs will feed to the feed lips.

REMOVE HPA SECTION BEFORE REMOVING THE SLIDE

Shimming the HPA Section for Perfect Air Seal

To factor in manufacturing tolerances of the MK23 pistols, we have made the height of the HPA section adjustable. To adjust the height, unscrew the HPA section using the two screws in the baseplate, and place the 0.25mm shims inbetween the two sections, before re-assembling.