CTM AAP-01/C FUKU-2 CNC UPPER - Skeleton - Grey/Black

CTM Tac AAP-01/C FUKU-2 CNC Upper – Skeleton - Grey/Black

Weight is the enemy of speed, and the Skeleton upper from CTM Tac exists to solve exactly that problem. Nearly 35% lighter than a standard FUKU-2 upper, this is one of CTM Tac's most genuinely performance-focused upgrades for the AAP-01, delivering faster cycling and a noticeably snappier recoil response without asking you to compromise on strength.

Precision CNC-machined from 6061 aluminium, the extensive skeletonised cutouts trim mass everywhere it isn't structurally needed, while reinforced screw holes keep the whole build genuinely tight and durable. Add in a striking two-tone anodised finish, and this airsoft pistol upgrade looks every bit as sharp as it performs.

Why You NEED the Skeleton Upper

• Ultra-Light 130g Skeleton Chassis: Precision skeletonized cutouts shed overall front-end mass to deliver faster cycle rates, snappier recoil response, and reduced wrist fatigue.
• Vibrant Two-Tone Anodized Finishes: Features durable, scratch-resistant anodized colour contrasts (such as Black/Red, Silver/Grey, Green/Black, Blue/Silver, Grey/Black, Violet/Green, Red/Gold and Gold/Gold) to give your airsoft pistol a striking race-gun visual edge.
• Reinforced V2 Screw Hole Architecture: Engineered with reinforced mounting points and tight manufacturing tolerances to eliminate thread wear, stripping, or wobbling over time.
• Forward-Mounted RMR Optic Interface: Integrated forward-mounted RMR footprint provides a clearer sightline and includes an RMR riser plate plus a decorative cover.
• Upgraded Fibre Optic Iron Sights: Redesigned iron sight geometry equipped with high-visibility green fibre optic rods for instant target acquisition in low-light indoor fields.
• 14mm CCW Muzzle Threading: Features standard 14mm CCW (Negative) threads under the outer barrel cap for direct installation of UV tracer units and mock suppressors.
• Universal Hop-Up Chamber Fitment: Engineered with a wider interior cavity to support Top Dead Centre (TDC), rotary, and standard hop-up units without clearance issues.

Technical Specifications

BZ Tech Team Advice:

• Threadlock Security: High-velocity gas blowback vibrations can cause small mounting screws to loosen over time. Always apply a single drop of medium-strength blue threadlocker to all RMR riser and sight mounting screws during assembly.
• Installing Fibre Optic Inserts: Pass the included green fibre optic rods through the sight channels, leaving roughly 1mm extending on each end. Gently flare the ends using the radiant heat of a lighter flame to create a clean, smooth bead that locks the fibre firmly in place.
• Max-Speed Blowback Engine: To unlock the full speed capability of this 130g airsoft pistol upgrade, pair it with a CTM Tac 7075 Advanced Bolt Lite and an upgraded 160%–200% recoil spring for an ultra-fast, snappy cycling platform.