Protech Airsoft

Protech Mk2.5 HPA Kit V3 Engine

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Your Price $300.00



  • Manufacturer: Protech Airsoft
  • Model: Mk2.5 HPA Kit V3 Engine 
  • SKU: PT-MK2-V3-AK
  • FPS: 250-550fps w/.2g BB – Dependent upon setup
  • Rate of Fire: Adjustable 1 - 30+ RPS
  • Fire Modes: Semi, Full Auto
  • Max Operating PSI: 40-125 PSI
  • FCU Voltage Range: 6-8.4v – 2s Lipo should be used. 3 Cell and NImh/Nicd may cause damage to electronics 
  • Proudly Engineered & Manufactured in the USA
  • Patent Pending AirBrake™ Nozzle System loads each bb at a controlled speed with low force, solving the issue other rear biased nozzle HPA systems not feeding with many hopup and bucking configurations
  • Fits into most Center-line nozzle AEG’s with little to no modification
  • Upgrade Kits from MkII to Mk2.5 available from retailers
  • 14 + Nozzles available standard & more coming Q2 2017
  • Custom Nozzles & Wire harnesses available standard
  • UFCU Control system uses easy visual programming with an LCD and 5 -way Joystick
  • 4+ Month battery life in standby on a 2s 250mah LipO
  • 3 Local Profiles able to be stored directly on FCU, no need for Bluetooth profile storage for each of your configurations
  • Best value of any drop-in HPA system on the Market 
  • Made in the U.S.A.

Package Includes:

  • 1x Protech Mk2.5 HPA Kit V3 Engine
  • 1x UFCU Fire Control System
  • 1x Wire Harness
  • 1x Trigger Board
  • 1x Buffer retainer screw


3year Manufacturer defect on mechanical components
1year Manufacturer defect on electrical components
O-Rings and Seals, wear and tear, and abuse not warrantied
Warranty claims within the US must be filed directly with Protech Airsoft via their website:

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