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£24.99
  • 6.03mm x 407mm
  • 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.

£24.99
  • 6.03mm x 285mm
  • 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.

£24.99
  • 6.03mm x 300mm
  • 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 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.

£34.95
  • 6.03mm x 208mm
  • Madbull Black Python
  • For ASG's Scorpion Evo

An upgrade Madbull Black Python Tightbore 208mm inner barrel for ASG's Scorpion Evo.

£36.99
  • Stainless Steel
  • Air-Seal Improving
  • Aircraft Aluminium

An extremely straight and precisely-manufactured inner barrel made from Stainless Steel and Aircraft-grade Aluminium, and comes included with a HOP rubber and O-Rings.

£36.99
  • Stainless Steel
  • Air-Seal Improving
  • Aircraft Aluminium

An extremely straight and precisely-manufactured inner barrel made from Stainless Steel and Aircraft-grade Aluminium, and comes included with a HOP rubber and O-Rings.

£36.99
  • Stainless Steel
  • Air-Seal Improving
  • Aircraft Aluminium

An extremely straight and precisely-manufactured inner barrel made from Stainless Steel and Aircraft-grade Aluminium, and comes included with a HOP rubber and O-Rings.

£36.99
  • Stainless Steel
  • Air-Seal Improving
  • Aircraft Aluminium

An extremely straight and precisely-manufactured inner barrel made from Stainless Steel and Aircraft-grade Aluminium, and comes included with a HOP rubber and O-Rings.

£36.99
  • Stainless Steel
  • Air-Seal Improving
  • Aircraft Aluminium

An extremely straight and precisely-manufactured inner barrel made from Stainless Steel and Aircraft-grade Aluminium, and comes included with a HOP rubber and O-Rings.

£36.99
  • Stainless Steel
  • Air-Seal Improving
  • Aircraft Aluminium

An extremely straight and precisely-manufactured inner barrel made from Stainless Steel and Aircraft-grade Aluminium, and comes included with a HOP rubber and O-Rings.

£36.99
  • Stainless Steel
  • Air-Seal Improving
  • Aircraft Aluminium

An extremely straight and precisely-manufactured inner barrel made from Stainless Steel and Aircraft-grade Aluminium, and comes included with a HOP rubber and O-Rings.

£36.99
  • Stainless Steel
  • Air-Seal Improving
  • Aircraft Aluminium

An extremely straight and precisely-manufactured inner barrel made from Stainless Steel and Aircraft-grade Aluminium, and comes included with a HOP rubber and O-Rings.

£36.99
  • Stainless Steel
  • Air-Seal Improving
  • Aircraft Aluminium

An extremely straight and precisely-manufactured inner barrel made from Stainless Steel and Aircraft-grade Aluminium, and comes included with a HOP rubber and O-Rings.

£44.99
  • R-Hop Inner Barrel Set
  • Improves BB Accuracy
  • Works with AEG & GBB!

The Master Mod R-Hop Inner Barrel Set is a revolutionary design allowing you to install the set with ease in either your AEG or your GBBR! Yes that's right, it works in both. It's time to upgrade your airsoft gun with the high quality internals it deserves.

£44.99
  • R-Hop Inner Barrel Set
  • Improves BB Accuracy
  • Works with AEG & GBB!

The Master Mod R-Hop Inner Barrel Set is a revolutionary design allowing you to install the set with ease in either your AEG or your GBBR! Yes that's right, it works in both. It's time to upgrade your airsoft gun with the high quality internals it deserves.

£44.99
  • R-Hop Inner Barrel Set
  • Improves BB Accuracy
  • Works with AEG & GBB!

The Master Mod R-Hop Inner Barrel Set is a revolutionary design allowing you to install the set with ease in either your AEG or your GBBR! Yes that's right, it works in both. It's time to upgrade your airsoft gun with the high quality internals it deserves.

£59.99
  • R-Hop Inner Barrel Set
  • Improves BB Accuracy
  • Works with AEG & GBB!

The Master Mod R-Hop Inner Barrel Set is a revolutionary design allowing you to install the set with ease in either your AEG or your GBBR! Yes that's right, it works in both. It's time to upgrade your airsoft gun with the high quality internals it deserves.

£64.99
  • R-Hop Inner Barrel Set
  • Improves BB Accuracy
  • Works with AEG & GBB!

The Master Mod R-Hop Inner Barrel Set is a revolutionary design allowing you to install the set with ease in either your AEG or your GBBR! Yes that's right, it works in both. It's time to upgrade your airsoft gun with the high quality internals it deserves.

£74.99
  • R-Hop Inner Barrel Set
  • Improves BB Accuracy
  • Works with AEG & GBB!

The Master Mod R-Hop Inner Barrel Set is a revolutionary design allowing you to install the set with ease in either your AEG or your GBBR! Yes that's right, it works in both. It's time to upgrade your airsoft gun with the high quality internals it deserves.

£79.99
  • R-Hop Inner Barrel Set
  • Improves BB Accuracy
  • Works with AEG & GBB!

The Master Mod R-Hop Inner Barrel Set is a revolutionary design allowing you to install the set with ease in either your AEG or your GBBR! Yes that's right, it works in both. It's time to upgrade your airsoft gun with the high quality internals it deserves.

£29.99
  • 6.03mm x 455mm
  • 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
  • Upgrade AEG Barrel
  • 6.03mm x 247mm
  • 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 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 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
  • 499mm Length
  • 6.03mm Tightbore
  • Aluminium Construction

A 499mm 6.03 inner Tightbore Barrel designed for use in your Airsoft assault rifle! Providing precision & accuracy, the Madbull barrel range are some of the best on the market.

£32.99
  • 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.

£36.99
  • MP5/SD / AKB
  • 229mm Length
  • 6.01mm Tightbore

An upgrade for MP5A4, MP5A5, MP5SD5, MP5SD6, and AKB AEG Airsoft weapons.

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

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

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 airsoft guns, gas weapons and more, with common diameters such as 6.01mm, 6.03mm and 6.05mm. 

Looking to replace the inner barrel of another gun? Our range of airsoft inner barrels offer options for almost any assault rifle, pistol and sniper, such as M4, G36, MP5 and even VSR and L96 types.

Shop our AR15 and M4 length inner barrels online today or visit us in store.