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15.49
  • High Density Steel
  • For Standard Hop Unit
  • Improved Range & Power

It's time to give more range, accuracy and power to your beloved SSG 69. 

27.49
  • Specially Designed
  • Specialised Airflow
  • Upgrade Inner Barrel

A new unique range of barrels by Maple Leaf designed to produce consistent air flow and pressure behind every BB as it leaves the barrel.

27.49
  • Specially Designed
  • Specialised Airflow
  • Upgrade Inner Barrel

A new unique range of barrels by Maple Leaf designed to produce consistent air flow and pressure behind every BB as it leaves the barrel.

27.49
  • Specially Designed
  • Specialised Airflow
  • Upgrade Inner Barrel

A new unique range of barrels by Maple Leaf designed to produce consistent air flow and pressure behind every BB as it leaves the barrel.

31.99
  • GBB Barrel
  • Stainless Steel
  • Rigid & Accurate

A Precision Inner Barrel for Gas Blowback Pistols and compact Airsoft weapons, produced to an incredibly high standard of tightbore performance increasing your range and accuracy over distance.

31.99
  • GBB Barrel
  • Stainless Steel
  • Rigid & Accurate

A Precision Inner Barrel for Gas Blowback Pistols and compact Airsoft weapons, produced to an incredibly high standard of tightbore performance increasing your range and accuracy over distance.

31.99
  • GBB Barrel
  • Stainless Steel
  • Rigid & Accurate

A Precision Inner Barrel for Gas Blowback Pistols and compact Airsoft weapons, produced to an incredibly high standard of tightbore performance increasing your range and accuracy over distance.

35.99
  • GBB Barrel
  • Stainless Steel
  • Rigid & Accurate

A Precision Inner Barrel for Gas Blowback Pistols and compact Airsoft weapons, produced to an incredibly high standard of tightbore performance increasing your range and accuracy over distance.

39.49
  • 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.

From 41.49
  • 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.

41.49
  • GBB Barrel
  • Stainless Steel
  • Rigid & Accurate

A Precision Inner Barrel for Gas Blowback Pistols and compact Airsoft weapons, produced to an incredibly high standard of tightbore performance increasing your range and accuracy over distance.

41.49
  • Brass and steel construction
  • Air cushion inner barrel 
  • Upgraded inner barrel for GBB/VSR

This unique range of barrels by Maple Leaf is designed to produce consistent air flow and pressure behind every BB as it leaves the barrel. The Maple Leaf Crazy Jet will enhance the accuracy of your GBB/VSR replica and pairs perfectly with a Maple Leaf HOP-up bucking for unparalleled range. This barrel is for GBB pistols with a TM style HOP-up/inner barrel and will also fit WE and VFC GBBRs, the VSR-10 Sniper rifle platform and its clones. 

43.99
  • 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.

43.99
  • 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.

43.99
  • 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.

43.99
  • 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.

53.49
  • 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.

53.49
  • 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.

65.49
  • Stainless Steel
  • 6.03mm Tight Bore
  • Bridged Inner Barrel

Used by staff and many Airsofters a like to improve your range and accuracy. When combined with the right weight BB, hop-up rubber and patience this barrel delivers killer accuracy down range. 

11.99
  • 6.03mm x 310mm
  • Brass Construction
  • Standard Replacement

A standard replacement inner barrel for Ares' Striker S1 Sniper Rifle series. The barrel is constructed from brass and has an internal diameter of 6.03mm.

14.49
  • For Sniper Rifles
  • 6.03mm Diameter
  • Brass Construction

A series of Precision Inner Barrel from Big Dragon, constructed from Brass and available in a various lengths to suit models such as: CYMA CM.701, CM.703, WELL MB4418-X and WELL MB-01 / MB-05 / MB-08 Airsoft Spring Sniper Rifles.

14.49
  • For Sniper Rifles
  • 6.03mm Diameter
  • Brass Construction

A series of Precision Inner Barrel from Big Dragon, constructed from Brass and available in a various lengths to suit models such as: CYMA CM.701, CM.703, WELL MB4418-X and WELL MB-01 / MB-05 / MB-08 Airsoft Spring Sniper Rifles.

14.49
  • For Sniper Rifles
  • 6.03mm Diameter
  • Brass Construction

A series of Precision Inner Barrel from Big Dragon, constructed from Brass and available in a various lengths to suit models such as: CYMA CM.701, CM.703, WELL MB4418-X and WELL MB-01 / MB-05 / MB-08 Airsoft Spring Sniper Rifles.

17.99
  • 6.02mm Tightbore inner barrel
  • Stainless steel construction
  • For TM and WE GBB pistols

If you are after a bit more accuracy from your GBB pistol, a tight bore barrel is the easiest and most effective solution! Introducing the 6.02mm Tightbore Inner Barrel from Maple Leaf, legends in the inner barrel market for their innovative crazy jet system. This inner barrel is of a standard design with a 6.02mm bore which will improve accuracy over stock inner barrels and provide a slight increase in FPS.

29.99
  • 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.

29.99
  • 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.

29.99
  • For GBB Pistol
  • 180mm Length
  • 6.04mm Diameter

A Maple Leaf inner barrel for Gas Blowback Airsoft Pistols.

33.49
  • Increase FPS
  • Mock Suppressor
  • Long Inner Barrel

A kit which allows you to increase your FPS and Accuracy of your Gas Blowback WE Europe Pistols by extending your Pistol's Inner barrel.

35.99
  • 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. 

35.99
  • 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.

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.