All orders over $100 ship free! Flat rate $7 shipping for anything else!


Redline Airsoft N7 MILSIM HPA Engine for V2

A closed bolt full power HPA drop in engine that doesn't require a battery. Need I say more?

The N7 Milsim is a Patent Pending, fully mechanical, Semi Auto only, drop in cylinder replacement.

The N7 Milsim is a truly unique design. Unlike other manufacturers HPA cylinder replacements, the N7 has a forward biased nozzle and fires from a true closed bolt.

The fact that the N7 Milsim is fully mechanical means that there is no battery or FCU needed. Just plug in your regulated air source and you are good to go. That also means that even rain and snow are not a problem since there are no electronics to short or corrode.

 Due to its true closed bolt design the N7 Milsim is much more consistent in seating the BB in the bucking from shot to shot when compared to typical open bolt designs. The result is more consistent shot to shot velocity, tighter groupings and greater accuracy at range when compared to open bolt type engines.

 Another unique feature of the N7 Milsim is that it uses a fixed volume, mechanically sealed, dump chamber. Rather than relying on solenoid dwell to control the volume of air used to propel the BB, the N7 Milsim fills an internal chamber at the pressure set by the users external supply regulator. When fired, this air chamber is mechanically sealed off from the supply and the chambers contents released down the barrel to propel the BB. This feature contributes to the N7 Milsim's excellent shot to shot consistency, with no air wasted do to improper dwell settings.

The N7 Milsim is also super simple to set up. Since there is no poppet dwell to tune you just 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.

You can also convert the N7 Milsim from mechanical/pneumatic to a standard electro/pneumatic N7 with an optional conversion kit.

Fits most Ver-2 gearboxes without modification. Gearboxes with heavy reinforcing in the geardrive area behind the trigger my require the removal of some of the reinforcement.



• True closed bolt, fully mechanical HPA cylinder replacement.    
• True weather proof design with no battery or FCU needed.                                                                                                                    
• Super easy to setup.
• Easy hop tuning do to its true closed bolt design.
• Fixed volume dump chamber design.
• Convertible from Mechanical/Pneumatic to Electro/Pneumatic with optional conversion kit.
• Less "joule creep" than typical HPA engines.
• Made in the USA