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The Air Venturi Avenger Bullpup 5.5mm takes all of the popular features from the original Avenger and places them into a smaller and more maneuverable design. It boasts the same adjustability, accuracy, reliability and sought after features we have come to love of the Avenger.

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The Air Venturi Avenger Bullpup 5.5mm takes all of the popular features from the original Avenger and places them into a smaller and more maneuverable design. This Bullpup still has the incredible accuracy and flexibility of the standard Avenger, but now measures only about 84cm long overall, down from about 109cm overall for the longer versions. It boasts the adjustability, accuracy, reliability and sought after features we have come to love of the Avenger.



The Avenger Bullpup has a high quality synthetic all-weather stock. It has a solid, sturdy feel to it and is made from polymer and finished in sleek black. The front-end of the stock, as well as the ergonomic pistol grip, are textured for extra comfort and grip. Being ambidextrous it offers both left and right handed shooters equal comfort and shootability. You get an adjustable cheek piece, as well as a tool-free height adjustable rubber buttpad. The stock also features two spare magazine slots in between the buttpad and pistol grip.

Further features are two mounting points for a rifle sling and three Picatinny rails on the fore-end. These Picatinny rails allow you to fit accessories like bipods, torches, etc. In addition, for optics fitment, they added a heightened Picatinny optics rail. Because the rail is higher than most, it allows for easier scope fitment.

The metal Biathlon side-lever allows for smooth, effortless cocking. You’ll find a pendulum style manual safety conveniently placed just below the cocking lever. Additionally, the two-stage trigger is adjustable in travel and weight, to suit your individual needs.


Filling & Adjustment

Located near the magazine storage, there are two holes in the stock, as well as protective rubber caps. The one closer to the pistol grip holds the regulator pressure adjustment screw. The other holds the rifle’s degas screw. On each side of the rifle there is a manometer. Firstly, on the left hand side, you’ll find the fill pressure gauge. Then, on the right hand side, the regulator pressure gauge.

Not only is filling the rifle safe, but also very simple to do. Simply screw off the protective cap on the front of the air reservoir. This reveals the built-in male quick connect fill probe. The maximum fill pressure on the 180cc air reservoir is 300BAR or 4350 psi. A nice touch is an automatic overpressure relief valve. It will protect the other parts in your rifle when you accidentally overfill.



The Avenger Bullpup has a fully shrouded barrel to quiet the rifle down. However, the barrel is not threaded, so you’ll need a silencer adapter that screws into the shroud itself. Thus we highly recommend the SA Silencers Adapter or DonnyFL Extender & Silencer Adapter. This will allow you to fit 1/2″ UNF threaded silencers or moderators.

With an externally adjustable regulator you can set its pressure up to 200BAR or 2900 psi. Furthermore, the easily-accessible hammer spring adjustment screw let’s you tune the power on this beauty to suit your needs. If you plan on tuning for different projectile weights, a chronograph is the best way to go. You’ll also need to clean your barrel regularly. Find all you need here!

We recommend shooting a minimum of 15.89 grain pellets at a velocity of around 890 fps to achieve 28 ft.lbs. If you want to shoot 25.39 grain pellets or slugs, we recommend a velocity of around 830 to 840 fps to achieve around 40 ft.lbs. Just about any pellet weight in between shoots beautifully, you just need to adjust the velocity for best accuracy.

Lighter pellets will give more shots per fill, whereas heavier pellets and slugs will give less.



Calibre: 5.5 mm (.22 cal)
Velocity: Externally Adjustable, up to more than 1000fps
Energy: Externally Adjustable, up to over 40 ft.lbs
Regulated: Yes, Externally Adjustable
Magazine: 10 Shot Removable, included a Single Shot Tray
Manometers: Dual, Reg Pressure (RH Side) and Fill Pressure (LH Side)
Air Tube Capacity: 180cc
Fill Pressure: 300BAR / 4350 psi
Stock: Synthetic, Ambidextrous Bullpup Style
Buttpad: Adjustable, Tool-free
Cheek Piece: Adjustable
Overall Length: 84cm / 33″
Barrel Length: 58cm / 22.8″, Fully Shrouded
Average Weight: 3.46kg / 7.63lbs
Optics Rail: Picatinny
Accessories Rail: 3 Picatinny rails on fore-end
Cocking: Biathlon Side Lever, Auto-Loading
Trigger: Adjustable 2-stage
Safety: Manual, Pendulum Style


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* Scope, mounts, bipod, flashlight and other aftermarket accessories not included.


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