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KWA HK MP7A1 GBB ViperTac Venom Custom Upgraded Gel Blaster SMG Replica

Product Description
$749.00 $899.00
Maximum quantity available reached.

*This item is restricted for sale in Queensland only – please see Gel Blaster Purchase and Shipping restriction details below.

ViperTac Venom KWA HK MP7A1 MP7A1 Gas Blowback Gel Blaster SMG. 

The MP7A1 GBB SMG has been on the market for awhile now. It was initially released with a nylon outer/inner barrel with a 7.5mm inner diameter. This blaster had excellent potential but needed some significant upgrades to make it a truly great performer.  to the MP7A1 and after listening to you our customers we've given it the ViperTac Venom custom touch and now this is one ferocious SMG! 

Green gas with an average velocity of 315+ FPS!! 

The MP7A1 has a selector switch which allows safe, semi automatic, or fully automatic fire.   Load up the magazine, insert it into the SMG, pull the charging handle and you’re ready to rock.  Every time you pull the trigger, the blaster will fire and cycle the bolt, accurately replicating the real firearm.  On the last round, the bolt will lock back, letting you know it’s time to insert another magazine.

Constructed of nylon with metal internals this is an excellent faithful replica of the famous HK MP7A1 SMG used by special forces across the globe including the US Navy SEALs.

The magazine is full metal single piece construction with metal lips and follower. Extremely sturdy, even if dropped accidentally. Unlike normal nylon magazine lips.

Externally the MP7A1 is packed full of features.  It has a telescoping stock which can fully collapse to allow the blaster to be used like a pistol.  There is a single picatinny rail on top of the blaster that runs the entire length.  Mounted on the rail are detachable iron sights that can be used as a low profile sight when folded down, or flipped up for a higher sight that is designed to pair with a red dot sight.  There are also 4 sling mount points allowing for single point or 2 point slings for left or right handed shooters.

As with all gas blowback blasters, they do need regular cleaning and basic maintenance to keep them in top notch firing condition.  It’s essential that you clean your barrel and clean and lubricate the critical components as described in your owners manual.  We recommend using ViperTac Snake Oil Silicone Lubricant to maintain your blaster.  When you are done using the blaster for the day, make sure your magazine has a slight amount of gas inside the magazine – this will keep just enough pressure to keep the seals snug, lubricated & will prevent perishing. Always follow the manufacturer’s recommendation for storing your blaster in a cool dry place that is out of direct sunlight.

The MP7A1 gel blaster will fit into the MP7A1 Cordura Nylon dropleg holster, and the holster has a spare mag compartment too**


  • Realistic Blowback Action
  • Bolt Lockout Accurately Replicates the Real SMG
  • Ambidextrous fire controls, magazine release & bolt release
  • Telescoping Stock
  • Folding Foregrip
  • 2 x Picatinny Rails (1 per side)
  • Metal Magazine lips & single piece magazine
  • Full length Picatinny Rail on top of blaster
  • Multiple Sling Attachment Points
  • Green Gas Powered

ViperTac Venom Upgrades

This KWA MP7A1 was initially released with a composite outer/inner nylon barrel. There was also no space to fit accessories on the front of the outer barrel. We have taken this MP7 and given it the ViperTac touch to unleash the full potential of these excellent blasters. Upgrades include:

  • Outer Barrel: Upgraded with Full metal Outer Barrel with 14mm CCW thread for attachments
  • Inner Barrel: Upgraded Deadshot 7.08mm CNC hand milled inner barrel with inbuilt hopup
  • Magazine exhaust valve: Upgraded with hi-flow exhaust vent to increase FPS


  • Colour: All Black
  • Operation: Gas Blowback
  • Power Source: Green Gas
  • Outer Barrel: metal with 14mm CCW thread for attachments including suppressors or tracer units
  • Inner Barrel Diameter: Deadshot 7.08mm tightbore barrel with inbuilt Hopup 
  • Barrel Length: 7.5 inches
  • Fully Functional Bolt Lockout
  • Body: High Grade Polymer
  • Internal mechanisms: metal and polymer 
  • Sling Mounts: Multiple
  • Sights – Low Profile or High Profile Flip Up Removeable and Adjustable
  • Compatible Sling Types: single point and double Point slings
  • Average velocity: 315+ FPS

What's In the Box:

  • HK MP7A1 Gas Blowback gel blaster 
  • Metal Birdcage style flash suppressor
  • 1 x Green Gas Magazine (hi-flow)

** Note: The MP7A1 Dropleg Holster is sold separately.

Gel Blaster Purchase and Shipping Restrictions

Gel Blasters are a restricted item in all states and territories of Australia except Queensland. Gel blasters are therefore unable to be purchased from our site by customers residing outside of Queensland. If you reside outside of Queensland and add a gel blaster to your cart it will automatically be blocked and will not allow you to check out.

For further information on the laws regarding gel blasters in your state or territory see the following links: ACT , NSW , VIC , SA , WA , NT , TAS , QLD .


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