Date: 20/2/2019 13:50
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Diana 350 N-TEC Magnum Premium Air Rifle

4.511 reviews
Diana 350 N-TEC.

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  • 0.177" (4.5mm)Refurb

    Refurb, Caliber: 0.177" (4.5mm), Stock: Beech, Handle: Ambi,

    Refurbished Diana Panther 350 N-TEC Magnum Premium gas-piston powerplant

  • 0.22" (5.5mm)

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List Price $499.99, Orig.Price $479.99 Save $80.00 (16%)

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Call: 888-262-4867 (GUNS)

  • Description
  • Specifications
  • Customer reviews
  • Q & A: 9 answered questions

Diana 350 N-TEC Magnum Premium air rifle

  • Gas-Piston Technology
  • Breakbarrel
  • Single-shot
  • Rifled steel barrel
  • Hardwood beech stock with checkered grip and forearm
  • Rubber buttplate
  • T06 two-stage adjustable metal trigger
  • Automatic safety
  • Post globe front sight
  • Rear sight adjustable for windage and elevation
  • Automatic safety
  • Anti-beartrap mechanism
  • Weight 6.7 lbs
  • Overall length 48.5"
  • Barrel length 19.5"

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

Germany has long been acknowledged as an airgun industry leader, and that's why Diana guns have a faithful international following of hunters, plinkers and field target shooters.

Your Diana 350 N-TEC powered Magnum Premium air rifle will deliver years of faithful service. This model is ambidextrous and delivers stunning power along with notable accuracy. The handsome stock has checkering on the grip and forearm for added shooting comfort.

If you like precise sporting rifles, get a Diana. If you like beautiful wood and rich bluing, get a Diana. If you like dependability, get a Diana.

Mount a good-quality scope on your new Diana air rifle to maximize accuracy.

See manual
See schematics

other products by Diana

Caliber0.177" (4.5mm)
Max Velocity1250 fps
Barrel Length19.5"
Overall Length48.5"
Shot Capacity1
Cocking Effort55 lbs
Front SightPost globe
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
Weight6.7 lbs
See manual
See schematics

other products by Diana

Average Customer Review

4.5 (11 reviews)
3 star1 star

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2.0 2.0

2.0 2.0

4.0 4.0

By Nebojsha on 2019-01-11
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0.00 ratings

Things I liked: Pretty accurate if you get to that stage by adjusting it. Trigger is exceptional!!!

Things I would have changed: A lot!!! Factory uses 0,4 gram light pellets to advertise velocity of 400 m/s (1320fps). Not a thing a would expect from such a brand like Diana. Quality is not at optimum for that kind of money and final finish of the riffle straight out of the box is awful.Screws will undone in 10-20 pellets. And not just stock screws, but barrel break screw also! Rear sight cheap plastic and loose.

What others should know: ZR mount makes a lot of problems. Poor quality. Try to avoid it with better scopes.

5.0 5.0

4.0 4.0

4.0 4.0

By Harold from USA on 2018-05-11
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Things I liked: Nice German build and quality. It's powerful and accurate. The finish was excellent. Good bluing and no nicks on the stock. Definitely a man's gun.

Things I would have changed: For what I paid i felt like it deserved a better rear sight system instead of plastic adjustment knobs that could also be prone to loosening up from the vibration. For being a scope eater better rear sights would be a good thing on this rifle.

What others should know: I tightened up my screws but every then shots the stock would loosen from the action and I had to retighten. I finally used blue locktite and that seemed to work. Cocking is hard but that strong N-Tec system is the only way you'll get magnum power. It's a nice gun and will make anyone happy.

4.0 4.0

4.0 4.0

4.0 4.0

By Eddie from USA on 2018-03-04
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Things I liked: This is the 4th rifle 1st 3 didnt hold up or was defective on delivery. This rifle is nice to look at seems to be more accurate than most of the others.It seemed that the craftmanship on this one was better than the rest.

What others should know: Fun to shoot.As far as the break barrels go this one seems to be a good one.


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  • Francisco from USA asked:

    Anyone know the pellet weights used to determine the published velocities? The publish velocity of 1,000 fps gives 8.884 fpe with a 4 grain alloy pellet, yet with an H&N 21 grain Pile-Driver it gives 46.642 fpe; in other words, does anyone have any chrony values with the weight of pellet used?

    • Tyler from USA:

      If you watch the video review linked on the page, you'll see that 10.3 grain pellets were running around 960 fps. So that 1000 fps mark was definitely achieved with lead.

  • Christopher from USA asked:

    Is there any way of adjusting the piston internal pressure to vary the FPS to suit different needs (Hunting to Target)? This is one thing I really like about my Weihrauch HW90.

    • Aatif from Pakistan asked:

      what is ft/lb energy of this to calculate this

      • Francisco from USA:

        Greetings Aatif from Pakistan, the way to calculate kinetic energy in foot pounds is you get yourself either paper and pencil, or a 99 cent calculator as I do then you enter your pellet weight in grains then you multiply by the velocity and multiply by the velocity again then you divide by 671 and you divide by 671 again then you push the equal (=) symbol on the calculator, the number on the screen is the energy in foot pounds. I love the Pyramid calculator, but I am not always near a computer.

      • Tyler from USA:

        If you click on description, on the right hand side of the page, under the video thumbnail it will say "unit converter for airgun measurements" Click on that, plug in your pellet weight and velocity and it will calculate the energy

    See all discussions

    Item Description

    DIA-23590401U [PY-4171-8373] - Item Condition: Refurb

    Refurbished Diana Panther 350 N-TEC Magnum Premium gas-piston powerplant

    Caliber0.177" (4.5mm)
    Max Velocity1250 fps

    This item is not eligible for coupon discounts

    Service Plans

    Diana 350 N-TEC.
    Diana 350 N-TEC Magnum Premium Air Rifle
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    20-for-$20 Mount/Zero Scope!.
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