Date: 24/3/2019 4:8

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HellBoy .177 CO2 BB Tactical Air Rifle, Black

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HellBoy .177 CO2.

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  • Description
  • Specifications
  • Customer reviews
  • Q & A: 17 answered questions

HellBoy .177 CO2 BB Tactical Air Rifle

  • 18-rd BB magazine
  • Semi-Automatic
  • One 12 gram CO2 cartridge fits into magazine
  • Velocity: 495 FPS
  • Full-metal receiver, magazine, and barrel
  • Weaver/Picatinny optics rail (removable carry handle)
  • Full metal action, plastic only used on retractable stock, pistol grip, and handguard
  • Non-adjustable trigger
  • Field-Strippable
  • Integrated Sling Swivel Mounts
  • Rear sight adjustable for windage and elevation (2 flip-up aperture settings)
  • 30"-33.5" overall length due to the adjustable stock
  • Overall weight of 5.2lbs

New from Hellraiser, the HellBoy, provides satisfying repeating shots fueled by a single 12-gram CO2 cartridge. Based on one of the greatest weapons platforms ever created—the M4 Carbine—heat up the range with blistering semi-auto shots and unparalleled realism for a tactical experience like nothing on Earth!  

Each HellBoy features a full-metal construction throughout the barrel, receiver, and the 18rd  BB magazine. Load up a single 12-gram CO2 and start sending BBs downrange at speeds up to 495 fps.  Just like the real M4, the HellBoy gives you a lot of choices for your optics. Shoot straight out of the box with included open sights or remove the rear sights to expose the 5.5" Picatinny/Weaver Rail—ideal for a small scope or red-dot sight. Its adjustable rear stock can be set to your preferred pull length with the press of a button. Each HellBoy is field-strippable, and includes integrated sling swivels for easy carrying options.

If you want a truly thrilling backyard shooting experience, choose the HellBoy and incinerate your targets.  

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See manual

other products by Air Venturi > Hellraiser

Caliber0.177" (4.5mm)
Max Velocity495 fps
Barrel Length14.5"
Overall Length33.5"
Shot Capacity18
BarrelSmooth bore
Front SightPost
Rear SightAdjustable for windage & elevation
Suggested forPlinking/Fun
Body TypeRifle
Fixed/adj. powerFixed
Weight5.2 lbs
See manual

other products by Air Venturi > Hellraiser

Average Customer Review

4.0 (20 reviews)

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5.0 5.0

5.0 5.0

5.0 5.0

By Joey from USA on 2019-02-25
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5.01 rating

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Things I liked: I like the look and that it's so well reproduced.

Things I would have changed: I would make it a little heavier.

What others should know: Make the front sight adjustable.


3.0 3.0

3.0 3.0

1.0 1.0

By Igor from USA on 2018-12-21
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1.01 rating

Things I liked: Look, feel, magazine capacity

Things I would have changed: Accuracy. At 8 yards - OK for target practice. About 3-4 inch distribution. Tried at 15 yards with scope, and you can see, that BBs go different trajectories each time. Trajectory is more curved, the farther is goes. It can go left, right, down - not predictable. I couldn't hit 12" target at 15 yards. Useless for anything, but simple kids game. I thought, that the velocity was to low, but purchased Meter, and velocity was in spec - 420 - 450 fps.


4.0 4.0

3.0 3.0

3.0 3.0

By Chris from USA on 2018-10-23
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4.01 rating

Verified Purchase

Things I liked: The mostly made of metal

Things I would have changed: I would make a larger magazine and I would make it full auto instead of only having a switch that says full auto

What others should know: Its a great little gun but you might want to get a spare mag cause 18 rounds goesnquick


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  • Roger from Canada asked:

    What all comes with the gun?

    • Tyler from USA:

      The rifle, magazine and allen key for piercing the CO2.

  • Jeremiah from USA asked:

    Are the threads clockwise or counterclockwise 14mm?

    • Jeremiah from USA:

      Ok so I got my Hellboy and yes the threads are counter clockwise just for anyone that may want to know.

  • Gregory from Canada asked:

    While I had the rifle field stripped, somehow the charging handle came loose and fell out of the upper receiver. It looks like this has stretched the spring that is attached to the charging handle. Although the gun still shoots fine, I would prefer that it was in 100% shape. Has anyone completely disassembled and removed the spring? I detached it from the charging handle but It is anchored to part of the upper receiver. How is it removed?

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    Item Description

    AV-HELLBOY177 [PY-4486-8752]

    Caliber0.177" (4.5mm)
    Max Velocity495 fps

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