Air Venturi HellBoy 177 Cal. CO2 BB Air Rifle zoom in


Air Venturi HellBoy 177 Cal. CO2 BB Air Rifle

Based on the ultimate warfighter rifle, the M4 Carbine, HellBoy can incinerate targets with blistering semi-auto shots and a real steel feel fueled by a single CO2 cartridge.  Able to send 177 cal. BBs downrange at 495 fps, this air rifle features full-metal construction throughout the barrel, receiver and the 18-round BB magazine.

Use the included open flip-up sights or remove the rear sights to expose a 5.5" Weaver / Picatinny rail.  The airgun is field-strippable just like a real M4, and includes integrated swivel studs for easy carrying options. Its adjustable rear stock can be set to your preferred pull with a press of a button.

  • Semi-automatic 
  • Smooth bore barrel
  • Manual safety
  • Fully adjustable rear sight with front sight post
  • Removable front takedown pin for easy maintenance and storage
  • Six position adjustable buttstock
  • Standard AR15/M4 controls including safety / fire selector and magazine release
  • 18-round BB magazine
  • Compatible with steel or Dust Devil BBs
  • Removable carry handle
  • Flat Top Picatinny scope rail under carrying handle
  • Uses one 12 gram CO2 cartridge, sold separatelly
  • Velocity: Up to 495 fps
  • Adjustable length: 30 - 33.25"
  • Weight: 5 lbs. 3 oz.

* Not a toy. Recommended for users age 16 years and older.

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When you think innovation in airguns - think Air Venturi®.

Air Venturi is the importer for leading international airgun, ammo and accessory manufacturers such as Air Arms®, Ataman®, Beeman®, Diana®, Evanix®, Feinwerkbau®, Haendler & Natermann® and Kral®. As a distributor Air Venturi also carries a full line of products from leading local manufacturers including AirForce®, Anschutz®, Benjamin®, Beretta®, Browning®, BSA®, Colt®, Crosman®, Daisy®, Gamo®, Hawke®, Smith & Wesson®, Tanfoglio®, Umarex®, Walther®, Webley®, Weihrauch®, Winchester® and many more.
Description Caliber Finish Magazine type / Capacity Price Qty


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4.5mm (177 cal.) Black Up to 18 BBs $199.99