Redline Airsoft N7 Gen-2 Electro-Pneumatic HPA Conversion Kit For Version 2 M4

Calculated at Checkout

Why buy from Airsoft Station?

  • FREE SHIPPINGOn purchases over $149
    (lower 48 states)
  • Returns & WarrantyReturns & Warranty Policy
    for 30 days
  • RAVE reviewsRated 4.6/5 by 35,000+
    Happy Customers


  • Manufacturer: Redline Airsoft
  • Construction: Aluminum Alloy
  • Compatibility: M4 / Version 2 AEG Receivers
  • Engine Length: 4.5 inches


  • The Redline N7 Gen2 is a Patent Pending HPA drop in cylinder replacement system. It is an updated version of our legendary N7. The very first single solenoid, true closed bolt HPA engine
  • The most noticeable change from the original N7 is the elimination of the external airline to the nozzle. We have also updated the internal components and slightly reduced the size of the air chamber. Functionally however, it is identical to the original N7
  • Due to its true closed bolt design and air balanced nozzle return, the N7 Gen-2 is much more consistent in seating the BB in the bucking from shot to shot when compared to a typical open bolt HPA engine. The result is more consistent shot to shot velocity, tighter groupings and greater accuracy at range when compared to open bolt HPA engines
  • Just like the original N7 the N7 Gen-2 uses a mechanically sealed, dump chamber. Rather than relying on solenoid dwell to control the volume of air used to propel the BB, the N7 Gen-2 fills an internal air chamber at the pressure set by the users external supply regulator
  • The N7 Gen-2 is super simple to set up. Since there is no poppet dwell to tune you simply set your supply regulators output pressure to match the Joules required and you are good to go. The proper amount of air needed for each shot, regardless of BB weight, barrel length or any other factor is all that is released
  • Easy hop tuning due to its true closed bolt design
  • Fixed sized dump chamber design means there is no poppet dwell tuning required
  • Convertible from Electro-Pneumatic to fully mechanical/pneumatic with optional conversion kits
  • Less "joule creep" than typical HPA engines which helps with meeting field regulations
  • 100% designed and manufactured in the USA

Package Includes: 1x Engine, 1x FCU, 1x Trigger Board, 1x Wire Harness, 1x Buffer Tube Adapter

30 Day Return & Warranty

Customer Reviews