Type: BB Rifle
Manufacturer: Air Venturi
Model: Hellraiser HellBoy
Materials: Metal and polymer
Weight: 2.36 g (5.2 lb)
Barrel: Smoothbore
Power Source: CO2
Action: Semi-automatic
Ammo Type: 4.55(.177cal) BBs
Ammo Capacity: 18 rounds
FPS: 495

Buy the magazine: AVT1033

Trigger Pull: Double action only triggers since there's no blowback action to set the trigger in single action mode. It'll be heavier than a true single-action trigger. That said, the trigger is not bad at all and can be activated very quickly for tons of fast action shooting, or at least until your 18 rounds are all gone :). I would say the trigger pull is between light and medium with a medium pull length and not that much take-up at the beginning.

Accuracy: I've played around with the Air Venturi HellBoy shooting at clay pigeons from various distances and it was surprisingly accurate for off-hand shooting. I could easily hit a clay pigeon from about 50 feet away with most shots. On a target, I shot a nice 10-inch 10-round grouping using a mounted red dot scope to help.

Build Quality: The Hellboy is made in China and some people will not like that, but I found it to be very well-built. Fit and finish are as good, if not better than any Taiwanese airgun I have reviewed, so quality control in the factory must be good. You're going to find metal parts where you would expect them to be on a real M4 (AR), like the receiver, barrel, buffer tube, magazine, carry handle, forward assist, charging handle, sling mounts, safety, and magazine release. Plastic parts are going to be the rear stock, hand guard, and pistol grip.

Realism: The Air Venturi HellBoy M4 BB Rifle is a 1 to 1 replica of the M4 or AR platform and even has some interchangeable parts like the hand guard and rear stock. You can take this gun down into the two halves, upper and lower, which makes for barrel cleaning or BB jam removal pretty easy. Even though there's no blowback action or internal bolt, you can pull the charging handle back which opens the dust cover just like the real deal. Other working moving parts are the magazine release, selector switch, forward assist, and adjustable rear stock.

Pros:

• Realistic M4 carbine replica
• Full metal receiver, barrel, and magazine
• Handguard and rear stock can be swapped out with real steel AR parts
• Integrated sling swivel mounts
• Adjustable rear sight with dual apertures
• Carry handle removable to expose Weaver/Picatinny rail
• Working dust cover, forward assist, magazine release, selector switch
• Powerful 495 FPS muzzle velocity
• Field strip capability

Cons:

• No blowback operation
• Low-cap magazine only holds 18 rounds
• Does not have full-auto functionality

Comments: Unleash hell with this CO2 powered M4 air rifle from Air Venturi! The HellBoy sports an ultra-realistic metal construction with the only polymer parts being the handguard, pistol grip, and six-position crane stock. This rifle is built for customization with a removable carry handle, rail-mount-ready handguard, and two integrated sling attachment points. With a blistering 495 FPS muzzle velocity, the HellBoy spits semi-auto fire.

Air Venturi Hellboy CO2 NBB Steel BB Rifle Manual