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Action Army  |  SKU: 11117600000  |  Barcode: 11117600000

Action Army 6.03mm 200mm Tight Bore Inner Barrel for AAP-01

Regular price £19.95
Tax included Shipping calculated at checkout.


Upgrade your AAP-01 with Action Army's 6.03mm tight bore precision barrel. At 200mm it's around 70mm longer than the stock barrel, so it runs inside a suppressor or through the AAP-01 receiver adapter for better air seal, consistency and range. Side notches lock it into Action Army's upgraded hop-up unit.

Pickup available at Socom Tactical - Fleet

Usually ready in 2 hours

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Description

The AAP-01 comes with a short 129mm inner barrel, which is great for a compact pistol but leaves performance on the table once you fit a suppressor or carbine kit. This 200mm precision barrel from Action Army is around 70mm longer, so it runs on inside an AAP-01 suppressor fitted to the original outer barrel. Alternatively, pair it with the Action Army AAP-01 upper receiver adapter so the barrel runs right through the front of the gun.

The 6.03mm tight bore improves the air seal around the BB compared with the stock barrel, which helps consistency and can add a little muzzle velocity. Action Army have also milled notches into the sides of the barrel so it can be locked into their optional upgraded hop-up unit, keeping everything aligned for even better accuracy.

Key specs

  • Brand: Action Army
  • Fits: Action Army AAP-01 Assassin GBB pistol
  • Internal diameter: 6.03mm (tight bore)
  • Length: 200mm (approx. 70mm longer than the stock 129mm barrel)
  • Side notches to suit Action Army's upgraded AAP-01 hop-up unit
  • Manufacturer part number: D01-043

Worth knowing: the barrel will stick out past the stock outer barrel, so you'll need a suppressor, barrel extension or the receiver adapter to cover it. A tighter, longer barrel can raise your FPS, so always chrono after fitting and check you're within your site's limits.

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Frequently Asked Questions

Will this barrel fit a standard AAP-01?

Yes. It's made for the Action Army AAP-01, but at 200mm it's longer than the stock 129mm barrel, so it needs a suppressor, barrel extension or the AAP-01 upper receiver adapter to cover the extra length.

Will a longer barrel increase my FPS?

Usually, yes. The extra length and tighter 6.03mm bore can add some muzzle velocity, so always chrono your pistol after fitting and make sure it's within your site's limits.

Do I need the upgraded hop-up unit?

No, it works with the standard setup. The side notches simply let it lock into Action Army's optional upgraded hop-up unit if you choose to fit one.