Product code: 6544
  • Smooth Edges
  • High Quality Finish
  • Strong Spring Tension

Exactly what you are looking for to put in your spares box or for upgrading / reinforcing your current Airsoft AEG. This spring is compatible with most Airsoft AEG gearboxes on the market. 

Full description


Why do we prefer this over other options? Well the RetroArms anti reversal latch spring is finished to a remarkably high quality with no sharp edges and feels harder to compress than most alternatives. With the spring tension being harder than a stock spring, this will return your latch against your bevel gear sooner and with more force. This results in a more efficient and positive cycle of your gearbox. This is highly desirable for anyone building a high rate of fire or high FPS build. Even if you aren't creating a monstrosity it is nice to know this often "weak spot" is well covered once swapped for a RetroArms alternative. Anti reversal latch springs are known for wearing out and snapping quite easily as they are moving all the time when firing your gun and they do take quite a hammering.

Product Features:

  • Please note, the pictured anti reversal latch is not included
  • High quality black finish
  • No blemishes or stress marks
  • Stronger than most standard springs
  • No sharp edges
  • Smooth operation with little friction on your anti reversal latch

Package Includes:

  • Anti Reversal Latch Spring



Internal Part Type
Anti-Reversal Latch
Patrol Base - Warning Icon
Patrol Base - Warning Icon
Parts Fitting


Colour Wheel Greyscale
Item Colour
Internal Part Construction

Part Specific

Part for Power Source Type
Weapon Platform
  • AR Platform
  • AK Platform
  • G36 Platform
  • Thompson
  • MP40
  • MP5
  • FN FAL / SLR
  • M14 Platform
  • ACR Platform
  • Tavor
  • P90
  • AUG
  • EVO 3A1
  • SA80
  • Galil
  • G3 Platform
  • UMP
Package Includes
Anti Reversal Latch Spring

Electric Part Specific

Gearbox Icon
Gearbox Version
  • V2 Gearbox
  • V3 Gearbox
  • V7 Gearbox

Delivery & returns

Delivery & Postage

Here at Patrol Base we ship all around world, with delivery not only to the UK, but to most of the EU and select Worldwide locations as well. We provide a working day by road service via our handpicked courier services, simply buy your Airsoft guns with us and we'll have them delivered directly to your door.

For more information and to see the country we deliver please check out our Delivery Information Page.


Below are some rough postage prices for orders. Please note these are subject to change, and are only a rough guide. For more accurate postage estimate please use the Postage Calculator at the basket.

UK Standard



UK Next Day



Highlands / Islands






* Please note that Scottish Highlands, Islands and EU post prices can vary wildly. Prices range from £8.99, up to £29.99, so please ensure you refer to the Postage Calculator at the basket for the lowest possible price.


We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.

You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.

For more information on returning products, and how to do it please visit our Returns Policy Page.

Size guide

Parts Fitting

Upgrades and Downgrades should only be undertaken by experienced players, or Airsoft Technicians. Please note, changing any internal parts of a weapon voids its warranty unless done in-house by our staff. 

Please ensure that when fitting parts the part purchased is the correct part, as once a part has been fitted we cannot accept return.

We do know that players love to tinker, so we're here to give you help should you require it, and if needed you can get in touch with our workshop for more help!

Unique Parts

Please note that some parts may be unique to a specific brand of weapon. For example: Parts for an ASG M4A1 may not fit an ICS M4A1.

Parts from the same brand typically have a high chance of fitting, though be warned, some replicas use unique parts, so please ensure the part will fit before you attempt to fit it.

If you require help with fitting any parts feel free to get in touch with us via our Contact Us Page.

Finance options

Looking to buy an Airsoft replica, but don't want to drop all your money at once? Perhaps you want to spread your payments over time to keep a backup of money, or perhaps you simply can't afford the hit right now and want to spread it over time? In any case you can spread your payments to take away the pain of the initial hit of the purchase of a replica, or give yourself the ability to spend that little bit more and get that rifle you've always wanted!

Want to know more about Airsoft Interest Free Finance?
You can check out our Airsoft Finance Info Page for more details >

Here at Patrol Base we have partnered with Omni Capital Retail Finance, allowing you to buy now pay later with ease.

You can select finance during the payment process which will take you to the Omnicapital portal and allow you to complete a credit check at your leisure. Once your finance is accepted you will be able to complete your order and wait for the goods to arrive!

Wondering how much it's going to cost?
Check out the examples below.

Looking to make the jump from BB guns to Airsoft, but don't want to save up to buy your entire loadout? Your time has come!

Airsoft replicas are leaps and bounds ahead of BB guns, but can sometimes carry a heavy price tag. You can spread the cost with us to save the strain on your wallet to allow you to buy your entire loadout at once, rather than piece by piece. Play now, pay later.

Want to know exactly why Airsoft Replica are so much better than BB Guns? Check out our BB Guns Page.

Similarly matched Colours