Evanix Viper .177 - Semi Auto Pistol - Gold trigger

Article number: 5148
Availability: In stock (3)
Delivery time: In-Stock and Ready to Ship


Evanix Viper .177 - Semi Auto Pistol - Gold trigger

Introducing the Evanix Viper Semi-Automatic Pistol. This gun is good for 2 magazines worth of shots before having to refill. It is also extremely accurate and consistent, and perfect for critters, target practice, and small game. This gun comes with 2 x 7rd single mags.

The Viper likes heavier pellets and slugs, the factory recommends 34 grain for proper operation and highest shot count (14 shots per fill)

It is pre-threaded 1/2" x 20 for a moderator:  Ammo used for db rating: Baracuda Green 19.91grain

  • Evanix Moderator: 106 dB (moderator currently in manufacturing, available on or after April 8)
  • 0dB Moderator: 100 dB
  • No Moderator: 120 dB

The Gauge can be configured in 4 different ways: please refer to pictures and video below


something to note on this pistol:


  • like all pcp airguns,  use them in the top 1000 psi of the max air fill for best performance.
  • This airgun is reliant on backpressure from a pellet in the barrel, if you dry-fire it,(no pellet in the magazine or barrel)   it can sound like it's shooting full auto, but it isn't shooting, it's just partially cycling many times.
  • Low power or dry fire shooting,  usually doesn't provide a full stroke of the pellet probe,   a full stroke is needed to fire additional pellets.
  • The large hammer spring screw on the back of the gun controls the semi auto feature,  too much pressure on the spring and you will need to cock the gun for each shot. adjustment should be made to keep the semi auto function working first, then you can screw it in further for a little more power if needed.


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