Split Gearbox Set (HPA)

Ultra-lightweight, modular gearbox design that ensures perfect alignment with Alvinski Carbon Uppers.

Unlike native alignment upper solutions (Wolverine MTW/El Diablo/ATI SUB9), the engine stays with the lower receiver during disassembly, allowing for easy access to the hop-up for maintenance.

Featuring

• Printed in PPA-CF
  
  • Lightweight, durable carbon fiber nylon
    
• Universal Receiver Compatibility (2nd receiver pin not required) 
  • Adjustable
    • Hop feedtube position
    • Magazine release hole position
      
• Triggerboard Compatibility
  
  • Verified: Polarstar, Wolverine Spartan, Gate Titan HPA
• Engine Compatibility (Separate modules required)
  • Polarstar: Jack, F1, F2
  • Wolverine: Inferno Gen 2
  • Backdraft: Phoenix (Batch 2)
• Stainless Steel Hardware
  • Threaded inserts paired with stainless steel hardware for longevity