CTM AAP-01 / AAP-01C HPA M4XIMUS Kit - Tan

HPA M4XIMUS Kit for AAP-01

Do you enjoy HPA setups and the AAP-01? Are you the kind of pistol player who isn’t afraid to spray and standard pistol magazines just aren’t enough? Do you want to feed your pistol using AEG M4 magazines for M4 (AR15)? Or are you building the ultimate speedsoft build and want to turn your pistol into a compact carbine? Then the CTM TAC M4XIMUS Kit is a revolutionary adapter that allows HPA connection and the use of AEG M4 magazines with the gas-powered AAP-01 pistol. This system gives you rifle-like handling while keeping the compact size of a pistol. The main body is made from high-strength nylon with 45% fiberglass, providing extreme durability and impact resistance. Precise CNC-machined components ensure perfect feeding and smooth operation. Side windows allow you to see remaining BBs in the feed channel. For optimal performance, the manufacturer recommends using strong PTS EPM magazines (EPM-1, EPM-1S).
Included is the new VELO-M4XIMUS trigger with sensitivity adjustment so you can fine-tune your shooting style. The M4XIMUS is compatible with all AAP-01 uppers, including both stock and upgraded models such as the CTM FUKU-2. It also works with aluminum grips from CTM and other accessories. For HPA input, the adapter uses a QD US Foster (male) fitting. The adapter is intended for HPA systems running 80–120 PSI. Pressures above 140 PSI may damage both the pistol and the adapter. For full setup tips, see our article How to build an HPA setup.

BB feeding diagram from an M4 magazine

Key Features

• AEG M4 magazine adapter
  Allows the use of AEG M4 magazines with the AAP-01.
  
  
• Extreme durability
  Nylon reinforced with 45% fiberglass offers maximum strength.
  
  
• BB-lock system
  Prevents BBs from falling out when changing magazines.
  
  
• Upper compatibility
  Works with all AAP-01 uppers, including upgraded variants like FUKU-2.
  
  
• Adjustable CNC VELO-M4XIMUS trigger
  Fine-tune trigger sensitivity to your preference. Other triggers cannot be installed.

Black version of the M4XIMUS kit with AAP-01 and CTM external parts (other components not included)

Technical Specifications

• Material: Nylon + 45% fiberglass, CNC-machined 6061 aluminum
• Weight: 310 g
• Compatibility: AAP-01, AAP-01C
• Magazine compatibility: AEG M4 (PTS EPM, Poseidon, Guarder, G&G)
• Installation: Requires basic manual skills and understanding of the AAP-01 GBB system

M4XIMUS kit shown with various AAP-01 uppers and M4 magazines

Package Contents

• HPA M4XIMUS Kit
• Rubber gasket
• Mounting screws

Kit Does Not Include

• Hammer housing
• Hammer set
• Upper locking button
• Locking button spring
• Trigger lever
• Trigger lever spring
• Magazine release button
• Magazine release spring
• Magazine nozzle seal / gas route

Installation guide