AEG Parts - Internal

Rocket Airsoft M120 AEG Spring. Silver type steel, non-linear spring type. One of our most popular airsoft upgrade springs! Very high quality steel made spring to get your gun running just...

The ASG Ultimate Upgrade Spring fits in all AEGs.  Comes in a variety of spring powers for different FPS goals. M95, M105, M115, M125, and M135 spring powers. Spring are pre-tuned...

Rocket Airsoft M130 AEG Spring. Silver type upgrade spring that is non-linear.  Fits in all gearboxes.  A higher FPS than standard for heavy duty upgrades.  FPS will be north of 400, maybe...

Rocket Airsoft M140 AEG Spring. Silver type upgrade spring that is non-linear.  Fits in all gearboxes.  A higher FPS than standard for heavy duty upgrades.  FPS will be 450, maybe around 460...

Rocket Airsoft M100 AEG Spring. Silver type upgrade spring that is non-linear.  Fits in all gearboxes.  A lower FPS than standard for faster RPS builds, lower field limits, or guns that...

Rocket Airsoft M120 AEG Spring Japanese Black Steel. One of our most popular airsoft upgrade springs! Very high quality steel made spring to get your gun running just below 400 FPS....

Rocket Airsoft M150 AEG Spring. Silver type upgrade spring that is non-linear.  Fits in all gearboxes.  A higher FPS than usual for heavy duty upgrades.  FPS will be just below 500 FPS. ...

Rocket Airsoft M90 AEG Spring. A good downgrade spring for those that want less FPS, higher rate of fire, reliability, and being CQB field legal. (please note: packaging may be generic...

Rocket Airsoft M160 AEG Spring. Silver type upgrade spring that is non-linear.  Fits in all gearboxes.  A higher FPS than most for heavy duty upgrades.  FPS will be north of 520, maybe...

Rocket Airsoft M170 AEG Spring. Silver type upgrade spring that is non-linear.  Fits in all gearboxes.  The heaviest AEG spring type there is for common builds.  FPS will be 550 or...

Rocket Airsoft M110 AEG Spring Japanese Black Steel. One of our most popular airsoft upgrade springs! Very high quality steel made spring to get your gun running around 350 FPS. Fits...

Rocket Airsoft M140 AEG Spring Japanese Black Steel. One of our most popular airsoft upgrade springs! Very high quality steel made spring to get your gun running a high FPS. Fits...