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Pre-Order ETA January 2020 Redline Airsoft SR-E Lightning Electro-Pneumatic HPA Conversion Kit (Model: Version 2 M4)

ID: 93943 (HPA-RL-SREL-V2M4)
RDP SR-E Lightning 1-14 (Ver-2 M4)
RedlineLight-Ver-2-M4RDP SR-E Lightning 1-14 (Ver-2 M4)93943
Pre-Order ETA January 2020 Redline Airsoft SR-E Lightning Electro-Pneumatic HPA Conversion Kit (Model: Version 2 M4)
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Pre-orders are always filled first but you can sign up below to be notified when the item is becomes available for immediate purchase.

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This is a pre-order item with an ETA (estimated arrival) of January 2020

A pre-order item is an up coming new product, or an item in the process of being restocked to the platform by it's manufacturer.By pre-ordering an item, you will have reserved the inventory availability to receive it before the goods arrive. All pre-order items are eligible for a full refund at any time during the waiting period; simply call or drop us an email with the order # and the pre-order item you would like to cancel for an immediate refund. Due to circumstances such as US customs inspection, factory delays and other situations out of our control, all ETAs (estimated time of arrival) are estimated to our best ability and are subject to change.


  • True closed bolt, single solenoid HPA cylinder replacement
  • Super easy to setup, most people can just install and play, no FCU tuning needed
  • Easy hop tuning do to its true closed bolt design
  • Fixed area dump chamber design
  • Convertible from Electro-Pneumatic to fully Mechanical-Pneumatic with optional conversion kit
  • Less "joule creep" than typical HPA engines
  • Made in the USA
The Redline SR-E Lightning is a Patent Pending HPA drop in cylinder replacement.

The Lightning is not just another cylinder replacement engine. It uses only a single solenoid, has a forward biased nozzle and fires from a true closed bolt.

Due to its true closed bolt design the Lightning 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.

A unique feature of the Lightning is that it uses a mechanically sealed, dump chamber. Rather than relying on solenoid dwell to control the volume of air used to propel the BB, the Lightning fills an internal air 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 is released down the barrel to propel the BB. This feature contributes to the Lightnings excellent shot to shot consistency, with no air wasted do to improper dwell settings.

The Lightning 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.

FCU Program Features:
  1. Nozzle Dwell
  2. Semi Auto Max Rate of Fire
  3. Full Auto / Burst Mode
  4. Full Auto Rate of Fire
  5. Anti Stiction Pulse
  6. Selector position

Manufacturer: Redline Airsoft


Compatibility: M4 / Version 2 gearboxes
Material: Aluminum alloy
Package Includes: HPA engine, FCU, Trigger board, Wiring harness

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This is a pre-order item.

Pre-order estimated arrival: January 2020

By adding a pre-order item to your shopping cart, you will guarantee yourself to have the item reserved before they are offered as an in-stock item. Often, you will also save on shipping while not risking a rate item being sold out before you have a chance to buy it. Being the largest Airsoft distributor in the America continent, is the gateway for many exciting items entering the Airsoft world. All pre-order items are tagged with our best estimate on arrival times factoring in manufacture delay, us custom examinations and other factorys to the best of our ability. The goods on pre-order generally arrive before they are past due or on-time 99% of the time. All pre-order items are processed subject to item availability on a first-come, first serve basis. All orders and payments are processed at the time of payment. Buyer reserve the rights to a full refund on any pending pre-order items at any time.

This item is currently Out of Stock. Most out of stock items are restocked within 1-3 weeks. Some items may take longer. Please add this item to your wishlist to keep posted on its availability.

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