How to Repair a Spring Airsoft Gun

Written by keith dooley
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Spring airsoft guns are plastic or metal replicas of modern and historical firearms. Spring guns fire small diameter plastic BB's by means of an internal spring which is compressed by cocking the gun with a slide or bolt. Spring airsoft guns may sometimes require repair as a result of normal use. Repairing an airsoft gun requires a few common household tools.

Skill level:

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Things you need

  • Spring airsoft gun
  • Screwdriver (Phillips)
  • Pliers
  • Replacement spring
  • Silicon lubricant
  • Cleaning rod, tip, and patch

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  1. 1

    Unload all ammunition from the spring airsoft gun and place the safety to the on position. Remove any magazines or clips and release the tension from the internal spring.

  2. 2

    Determine the cause of the malfunction with the spring gun. If the velocity (feet per second) of the gun has decreased significantly the problem may by the internal spring. There may also be debris or a burr in the barrel of the gun. If the BB's are not loading properly there may be an issue with the HopUp system.

  3. 3

    Inspect, repair or replace the internal spring (s) if necessary. Unscrew the frame connecting screws with a Phillips screw driver. Use caution when separating the two halves of the gun so that the spring does not pop out of the assembly.

  4. 4

    Remove the spring and retaining assembly. Inspect the spring for damage and replace if necessary. If the spring is not damage and only compressed, slightly pull the spring apart with your fingers or a pair of pliers. This will add more tension and increase the velocity of the BB's.

  5. 5

    Inspect the HopUp system if BB's are not loading correctly into the gun. Access the spring which is often part of the clip or magazine. If the spring is damaged, replace with a new one or replace the entire magazine or clip if the spring cannot be accessed.

  6. 6

    Clean the barrel of the spring airsoft gun using a cleaning rod, tip and cleaning patch. Run the patch down the barrel to check for debris and burrs in the barrel. Apply a small amount of 100 per cent pure silicon spray to the patch and insert back into the barrel.

  7. 7

    Lubricate the slides, springs, trigger assembly and HopUp with pure silicon spray. Applying a thin coat of lubricant may free sticking parts and provide a smoother action.

Tips and warnings

  • Use pure silicon spray only, do not use petroleum based lubricants as they may damage plastics in the gun.
  • Use caution when working with silicon spray to avoid open flames and heat sources.
  • Make sure the gun is completely unloaded and tension released before beginning any work.

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