Action Army VSR / VSR-10 M150 Power Spring

Action Army
Code: B01-009
  • Enhanced FPS
  • VSR-10 Compatible
  • High Quality Spring

A spring designed and manufactured by Action Army for VSR-10 / BAR-10 and G-Spec bolt action spring sniper rifles and the many other VSR compatible designs.

Full description


The spring is one of, if not the most important internal component of Airsoft bolt action sniper rifles, and if youre looking to enhance the performance of your sniper, changing the spring is one of the first things you should look at. This replacement spring will allow you to up your VSRs performance to approximately 490FPS. Finely manufactured and finished, this spring is designed to allow you to get the best possible efficiency and performance from your VSRs bolt, with an incredibly smooth flowing action. If you're looking to enhance your FPS, then this easy to install, purpose-designed VSR-10 Spring is an excellent choice to start.


  • Designed for Marui VSR & compatible weapons
  • Enhanced FPS Upgrade Spring
  • Excellent coil strength
  • Closed and Flat top and end for improved stability
  • Flattened Ground In Cut Ends to prevent wear from scratching
  • Inner: 7.5mm
  • Outer: 10.5mm
  • Length: 220mm
  • Approx Output: 490fps w/ 0.2g BB
  • Compatibility: VSR Type spring rifle

Package Includes:

  • VSR / VSR-10 M150 Power Spring

Special Instructions:

Please note that if you intend to install this in a Tokyo Marui, or other base VSR with an FPS of sub-350 please ensure you also upgrade your Piston, Spring Guide, and Sear Set to avoid damage to your weapon.

Please note, the end result of your rifles FPS is determined by many other components not just inside your Cylinder but also the Barrel Length / Bore, Hop-Up unit, BB weight, Air Seal and much more. Any ratings above are an average found from testing by the manufacturer, and are a rough guide to their power.

Before fitting the Spring please compare you existing spring with the measurements in the Size Section of the product description to ensure compatibility with your Spring Guide, Piston and Cylinder Setup.

If you are unsure on fitting this spring and what to expect from doing so, please feel free to contact our Workshop Team either via email at: or call our team on: 01484 644709.



Internal Part Type
Patrol Base - Warning Icon
Upgrade Parts


Colour Wheel Greyscale
Item Colour
Construction Icon
Internal Part Construction

Part Specific

Part for Power Source Type
Weapon Platform
VSR / Bar10
Package Includes
Main Spring

Spring Specific

Spring Manafacturer Power Rating
Approx. M-150
Spring Approximate M/S
Approx. 150m/s, using 0.20g BB
Spring Approximate FPS
Approx. 490fps, using 0.20g BB

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.