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  • 6.03mm x 650mm
  • Upgrade AEG Barrel
  • Increase Performance

An upgrade Airsoft 6mm BB Gun Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units. The barrel is constructed from Alloy, then Hard Coated via an Anodising Process. 

£32.99
  • 6.03mm x 509mm
  • Upgrade AEG Barrel
  • Increase Performance

An upgrade Airsoft 6mm BB Gun Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units. The barrel is constructed from Alloy, then Hard Coated via an Anodising Process.

£32.99
  • M4/M15/M16
  • Stainless Steel
  • 6.03mm Inner Barrel

An upgrade barrel over the very popular MADBULL Airsoft Grade Aluminium range. The stainless steel barrel provides a more accurate and consistent flight on your BB.

£39.99
  • 6.03mm x 363mm
  • Upgrade AEG Barrel
  • Increase Performance


    An upgrade Airsoft 6mm BB Gun Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units. The barrel is constructed from Alloy, then Hard Coated via an Anodising Process.

    £29.99
    • 6.03mm x 590mm
    • Upgrade AEG Barrel
    • Increase Performance

    An upgrade Airsoft 6mm BB Gun Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units. The barrel is constructed from Alloy, then Hard Coated via an Anodising Process.

    £32.99
    • M16A2 / AUG
    • 509mm Length
    • 6.01mm Diameter

    An upgrade tightbore barrel for Airsoft AEG such as the M16, M16A2, and AUG rifles. The barrel is constructed from steel and is 6.01mm in diameter, and 509mm long.

    £36.99
    • M4 / AEG Use
    • 363mm Length
    • 6.01mm Inner Diameter

    An upgrade barrel over the very popular MADBULL Airsoft BLACK PYTHON range. 

    £36.99
    • M4/M15/M16
    • Stainless Steel
    • 363mm 6.03 Inner Barrel

    An upgrade barrel over the very popular MADBULL Airsoft Grade Aluminium range.

    £39.99
    • Stainless Steel
    • 6.03mm Tight Bore
    • Increased Performance

    An upgrade Airsoft 6mm BB Gun inner Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units.

    From £49.99

    Upgrade Inner Barrels for Airsoft M4 / AR15 Rifles and more

    Here at Patrol Base we have a wide variety of Airsoft Inner Barrels available both In Store and Online. We stock barrels for both AEG Electric Airsoft Guns, Gas Weapons and more, with common diameters such as 6.01mm, 6.03mm and 6.05mm. Airsoft Upgrade Barrels can be purchased for almost any Rifle, Pistol and Sniper, such as M4, G36, MP5 and even VSR and L96 Types.

    Should you need Fitting Advice or Tutorials you can visit our Buying Guide Section !BUYING GUIDE - AIRSOFT BARRELS! or call our Workshop Team on: 01484 644709.

    If you can't find something that you like, or want something which isn't on the website why not contact us via Phone and we can do our best to source it for you! 

    Telephone: 01484 644709