CTM AAP-01/C FUKU-2 CNC UPPER - Baby Shark - Black

CTM Tac AAP-01 FUKU-2 CNC Upper – Baby Shark - Black

Some upgrades are about performance. Some are about looks. The Baby Shark upper from CTM Tac is proof you don't have to choose as this is a full replacement upper for the AAP-01 and AAP-01C, styled with genuinely aggressive shark-inspired lines that turn heads on the field, without giving up an ounce of usability.

Fully CNC-machined from 6061 aluminium, this FUKU-2 upper is part of CTM Tac's shark-series lineup, available in both long and short versions so you can dial in exactly the profile and balance you want for your AAP-01 upgrade. It's the kind of centrepiece part that instantly changes the character of your whole build.

Why the Baby Shark Upper Stands Out

• Ultra-Short "Baby Shark" Skeleton Design: Compact, stubby outer profile featuring aggressive shark-gill cutouts that shed every unnecessary gram for lightning-fast target acquisition.
• Precision 6061 CNC Aluminium Construction: Milled from solid aircraft-grade T6 aluminium alloy to deliver rock-solid durability and rigid barrel stabilization during rapid-fire strings.
• Featherweight Front-End Balance: Shaves significant mass off your front assembly, improving one-handed point-ability and high-speed directional transitions.
• Integrated Optics & Accessory Mounting: Features integrated top and bottom rail mounting interfaces for micro red dots, tracer units, and compact tactical lights.
• Tracer & Muzzle Ready: Features an integrated 11mm CW inner thread and includes a 14mm CCW thread adapter for instant installation of your favourite UV tracer unit.
• Drop-In AAP-01 Fitment: Precision-engineered for seamless compatibility with standard Action Army AAP-01 and AAP-01C lower receiver assemblies.

Technical Specifications

BZ Tech Team Advice:

• Inner Barrel Match: Because the baby shark profile is ultra-short, pair this receiver with a compact 129mm to 138mm precision inner barrel. Keep the inner barrel flush inside your tracer adapter for clean BB flight paths and maximum UV tracer exposure.
• Pair with Lightweight CNC Bolts: To match the high-speed capability of this compact upper, pair it with a CTM Tac 7075 Advanced Bolt Lite and an upgraded 160%–200% recoil spring. This combination creates an indestructible, high-RPM firing engine for your airsoft pistol upgrade.
• Threadlock Security: Apply a small drop of medium-strength blue threadlocker to all upper mounting screws and thread adapters during assembly to prevent high-frequency GBB vibrations from loosening components mid-game.