How to Repair Airguns: A Complete Guide

By Published On: 11 June 2024Categories: Air Gun

Airguns are a popular choice for target shooting, pest control, and recreational use. However, like any mechanical device, they can experience wear and tear over time, leading to reduced performance or even complete failure.

In this comprehensive guide, we’ll walk you through the steps to repair your airgun, whether it’s a spring-powered air rifle, a PCP (pre-charged pneumatic) air rifle, or a pistol.

Diagnosing the Problem

The first step in repairing your airgun is to identify the issue. Common problems include:

  • Leaking air: If your airgun is leaking air, it could be due to a damaged breech seal, worn o-rings, or a cracked air cylinder.
  • Reduced power: If your airgun is not shooting with the same velocity as before, it could be due to a worn piston seal, a damaged mainspring, or a clogged barrel.
  • Inaccurate shooting: If your airgun is not shooting accurately, it could be due to a loose scope mount, a bent barrel, or a damaged crown.

Once you’ve identified the problem, you can proceed with the appropriate repair.

Repairing a Spring Air Rifle

Spring air rifles are the most common type of airgun and are relatively easy to repair. The most common issues with spring air rifles are related to the piston seal and the mainspring.

To replace the piston seal, you’ll need to disassemble the airgun: 

  1. Start by removing the stock and then the trigger assembly. 
  2. Next, remove the barrel and the breech seal.
  3. Finally, remove the piston and the old seal. Clean the piston and the cylinder with a solvent and then install the new seal. Reassemble the airgun in the reverse order.

To replace the mainspring, you’ll need to follow a similar process. However, be careful when removing the old spring, as it will be under tension. Use a spring compressor to safely remove and install the new spring.

Repairing a PCP Air Rifle

PCP air rifles are more complex than spring air rifles and require specialised tools and knowledge to repair. The most common issues with PCP air rifles are related to the air cylinder and the valves.

PCP Air Rifle Leaking Air

If your PCP air rifle is leaking air, it could be due to a damaged o-ring or a cracked air cylinder. To replace the o-ring, you’ll need to depressurise the air cylinder and then remove it from the airgun. Remove the old o-ring and clean the sealing surface. Install the new o-ring and then reassemble the airgun.

PCP Air Rifle Not Holding Air

If your PCP air rifle is not holding air, it could be due to a damaged valve. To repair the valve, you’ll need to disassemble the airgun and remove the valve. Clean the valve and the sealing surface and then replace any damaged components. Reassemble the airgun and test it for leaks.

Repairing a Pistol

Pistols are similar to spring air rifles in terms of repair, but they have a few unique components, such as the slide and the blowback mechanism. 

If your pistol is not cocking properly, it could be due to a damaged sear or a worn hammer. To repair the sear, you’ll need to disassemble the pistol and remove the trigger assembly. Replace the damaged sear and then reassemble the pistol.

If your pistol is not blowing back properly, it could be due to a damaged piston seal or a clogged valve. To repair the piston seal, follow the same process as for a spring air rifle.

Tips for Maintaining Your Airgun

Regular maintenance is key to keeping your airgun in top condition and preventing the need for repairs. Here are a few tips to keep in mind:

  • Clean your airgun after every use – use a cleaning rod and a soft cloth to remove any debris from the barrel and the action.
  • Store your airgun in a dry, cool place – avoid exposing it to extreme temperatures or humidity.
  • Use high-quality pellets or BBs – cheap, low-quality ammunition can damage your airgun and reduce its accuracy.
  • Have your airgun serviced regularly by a qualified technician – they can identify and fix any issues before they become major problems.

The Wolfman’s Range of Airguns

By following the information provided in this guide, airgun enthusiasts can keep their devices in top condition and enjoy the sport of shooting for years to come.

At The Wolfman, we offer a wide range of airguns for every skill level and budget from top brands like Crosman and Weihrauch. Whether you’re a beginner looking for your first airgun or an experienced shooter in need of an upgrade, we have something for you.

At The Wolfman, we offer a wide range of airguns for every skill level and budget from top brands like Crosman and Weihrauch. Whether you’re a beginner looking for your first airgun or an experienced shooter in need of an upgrade, we have something for you. All airguns purchased from The Wolfman come with a 12 month warranty. If your airgun is still under warranty, please contact us first before attempting any repairs yourself, as this could potentially invalidate the warranty.

In addition to airguns, we also offer a full range of accessories, including scopes, mounts, pellets, and cleaning kits. Contact us today – our  knowledgeable staff is always available to answer your questions and help you find the perfect airgun for your needs. 

About the Author: The Wolfman Store

After over 30 years experience in the Airgun trade, The Wolfman Store are delighted to announce our new website, enabling us to supply direct to the shooting community for the first time. Combining a vast stock of established favourites with exciting products new to the UK, The Wolfman Store will be striving to provide unparalleled service at the most competitive prices.

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