Date: 3/7/2020 5:22
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Diana Panther 340 N-TEC Air Rifle

4.53 reviews
Diana Panther 340

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  • TruGlo's fiber-optic front
    TruGlo's fiber-optic front sight adjusts for elevation; rear sight adjusts for windage & elevation.
  • WARNING This product
    WARNING This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Diana Panther 340 N-TEC air rifle

  • Gas-Piston Technology
  • Breakbarrel
  • Single-shot
  • Rifled steel barrel
  • Top-quality synthetic stock with double sided cheek-piece
  • T06 two-stage adjustable metal trigger
  • Automatic safety
  • TRUGLO fiber-optic front sight
  • Rear sight adjustable for windage and elevation
  • Automatic safety
  • Anti-beartrap mechanism
  • Weight 7.3 lbs
  • Overall length 46.25"
  • Barrel length 19.75"

Benefits of a gas-piston powerplant:

  • Smoother cocking
  • Smoother shooting
  • No spring torque
  • No spring fatigue, even if you leave it cocked for hours
  • Functions perfectly in cold weather
  • Lasts longer than a metal spring

The Diana Panther 340 air rifle is powered by German gas piston technology that offers consistent power, a very smooth cocking effort, and a decrease in vibration leading to better accuracy for you. Made in Germany, Diana airguns live up to their reputation of high quality.

This all-weather beauty is relatively easy to cock for such a powerful breakbarrel. The T06 metal trigger lets you customize the trigger to your liking making this gun even more pleasing.

See manual

other products by Air Venturi > Diana

Caliber.22" (5.5mm)
Max Velocity800 fps
Barrel Length19.75"
Overall Length46.25"
Shot Capacity1
Front SightFiber Optic
Rear SightAdjustable for windage & elevation
Scopeable11mm dovetail
TriggerTwo-stage adjustable
Suggested forSmall game hunting/plinking
Trigger Pull2.0 lbs
ActionBreak barrel
Body TypeRifle
Fixed/adj. powerFixed
Weight7.3 lbs
See manual

other products by Air Venturi > Diana

Average Customer Review

4.5 (3 reviews)
3 star2 star1 star

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4.0 4.0

4.0 4.0

5.0 5.0

By Charles from USA on 2018-02-07
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0.00 ratings

Things I liked: This is a fine, well built pellet gun. I was able to use open sights at 25 yards and group a 2 inch target with standard lead pellets. It has a gentle recoil and a light triger that makes it a smooth shooting rifle. Now comes time for the scope.

Things I would have changed: I am not impressed with the sights and would recomend this gun as an option for metal sights or scope. The rear optical fiber sight is a bit wide for my preference. Perhaps offer a shorter stock.

What others should know: The price is fair for the gun, and that it is a reliable weapon.


4.0 4.0

5.0 5.0

5.0 5.0

By Brian from USA on 2017-01-16
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0.00 ratings

Things I liked: Overall quality is very good. Right out of the box using JSB 14.35 grain .22 pellets I was able to shoot half inch groups at 30 yards.

Things I would have changed: There are a few things I would change. Trigger has a clean break but transition between first and second stage is hard to detect. I would also like to have a rubber butt plate with spacers to adjust for eye relief. Current butt plate is slick and make gun hard to cock when I place it on my thigh it slips off. This is the first Diana rifle I own and I read they have barrel drop. True I had to shim the scope to account for this

What others should know: N-TEC gas piston has good power without twang of a spring gun


5.0 5.0

5.0 5.0

5.0 5.0

By alan from USA on 2016-12-17
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4.01 rating

Things I liked: Have (2) Both shoot great one eats anykind of pellet you put in it is accurate with about 6 different pellet weights. from 6.9gr super H to Crosman Premier ,8.5gr Sniper medium, copper trophy 8.8gr ,8.2gr masterkl, shot 5/8"x3/8" Groups at 25m shoots 1"x7/8" groups at 35m Scoped Hawke 50mm , Have already Put almost a Thousand rounds through it . I am having a blast w/it! have taken squirrels w/it One from 28m. NO Friends this is not your Red Rider. I am lucky to have room to shoot out to a 100m 45m is as far as I have tried 1- 3/16 x 1" all are 10 shot groups Was extremely impressed w/ accuracy 20m groups are 1 ragged hole sniper medium 8.5gr seems to be the most accurate so far but have several that shoot under 11/16" x1/2" groups 7 and 8 usually in 1 ragged hole If ya like to shoot and try to shoot accurately

Things I would have changed: Wish it was 5.5# like advertised weight. This one is almost 9#s w/Scope but weight makes it a more solid rest .But carrying it ,you know its a weapon , .

What others should know: Watch closely when loading have had different Brands of pellets fall out of barrel throat while closing after cocking and loading.


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  • dimitrios from Australia asked:

    Does the 340 N-Tec also come in a Camo stock?

    • John from USA asked:

      Is the 340 an updated version of the Diana 34 classic. They physically appear at least very close.

      • Tyler from USA:

        Yes, the 340 has the N-Tec gas ram while the 34 has a standard steel spring

    • david from Colombia asked:

      Hi. what should i expect from this rifle in termns of accuracy and range comapred to the RWS diana model 34p. What scope and mount would you suggest if im on a Budget and requiring at least a 3-9 X 40? Thanks

      • Tyler from USA:

        Last one I shot produced a 5/8" group around 25 yards for 5 shots. No reason a spring 34p couldn't do the same. I'd check out a Leapers True Hunter...comes with dovetail rings: Leapers UTG 3-9x40AO True Hunter...

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    Item Description

    DIA-23493205 [PY-4169-7964]
    Diana Panther 340 N-TEC gas-piston powerplant
    Caliber.22" (5.5mm)
    Max Velocity800 fps

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