Date: 7/6/2020 3:11
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Hammerli AR20 Pro Air Rifle, Hot Red

4.52 reviews
Hammerli AR20 Pro

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1-year limited warranty



List Price $1,250.00 Save $200.00 (16%)

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  • 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
  • Hammerli AR20 Pro Hot Red air rifle
  • Precharged pneumatic
  • Bolt-action
  • Single-shot
  • Ambidextrous cocking piece with release button
  • Wide loading recess with precision feed
  • Lothar Walther match barrel
  • Red aluminum stock with variable stock length, cheekpiece height and fore-end height
  • Ambidextrous grip and stock
  • Vertically adjustable buttpad
  • Shorten or lengthen the stock with included spacers (41.65" to 43.66")
  • Front sight globe accepts 3.8mm inserts (1 insert included)
  • Fully adjustable basic competition diopter rear sight
  • Up to 31.496" (800mm) sight length
  • 19.685" (500mm) barrel
  • 8.75 lbs. (3970 grams)
  • 200 and 300 bar fill pressures (2,900 psi and 4,351 psi, respectively)
  • Walther removable aluminum air cylinder with integral manometer (air pressure gauge)
  • 2-stage trigger can be adjusted for pressure point, pull weight, stop and slack
  • T-rail for 3-position competition
  • Approximately 350 shots per fill
  • Meets ISSF requirements
  • Includes DIN adapter for 300 bar and 200 bar, 200-gram stock weights (2), 1 aperture insert, 4 tools, spacers for forearm and buttstock, and various lengths of screws for the spacers
  • Regulated at 70 bar

Ten-meter competition is fierce, and you need tools that give you the edge over the competition. The AR20 air rifle was made for just one thing: drilling the 10-ring. Whether you're a teen with Olympic aspirations or a senior citizen who just wants to shoot targets in the basement, this precharged pneumatic will deliver. If you do your job, the AR20 Pro Hot Red PCP rifle will do its job.

other products by Hammerli

Caliber.177" (4.5mm)
Max Velocity557 fps
Barrel Length19.69"
Overall Length43.66"
Shot Capacity1
Front SightGlobe w/Aperture Inserts
Rear SightDiopter/micrometer adjustable
Scopeable11mm dovetail
TriggerTwo-stage adjustable
Suggested forCompetition
PowerplantPre-charged pneumatic
Max Shots per Fill350
Body TypeRifle
Fixed/adj. powerFixed
Weight8.75 lbs

other products by Hammerli

Average Customer Review

4.5 (2 reviews)
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4.0 4.0

5.0 5.0

5.0 5.0

By David from USA on 2019-03-31
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Things I liked: Very accurate. Fully adjustable trigger. Air cylinder provides for lots of shots. I like that the pistol grip is hollow and can be lowered over one of the adjustment knobs on the foot of my gun rest, so that I do not have to lay the rifle on the bench when getting up to change targets.

Things I would have changed: Better manual. Instructions for filling the air cylinder pretty much non-existent. Abbreviations on windige and elevation knobs appear to be a in a foreign language.

What others should know: This is an excellent gun and a good value for the money. Very accurate, easy to cock and load.


5.0 5.0

5.0 5.0

5.0 5.0

By christopher from USA on 2018-07-28
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Things I liked: This gun has high end 10 Meter rifle features at a moderate price. It is highly adjustable, you get hundreds of shots per fill, the trigger is a dream and the accuracy is limited only by the shooter. It is a joy to shoot and, somewhat unfortunately, makes all my other airguns seem inadequate.

Things I would have changed: The cocking lever is not is smoothest. Pulling it back feels a bit jerky. It feels like the first thing that will need maintenance or repair on this gun. Also, I found the need to move the COG back a bit; There is no good place to put additional weight and I don't see heavier aftermarket weights for this gun. Extra weight placement is manageable but awkward.

What others should know: I've bench rest tested H&N Sport Finale Match Heavy, RWS Meisterkugeln 8.2gr and Crossman Premier Match Grade 7.9gr at 10 Meters. All three are an excellent choice and I found little practical difference between them. I did upload an image with the results. With a 9x scope you can pretty much put each pellet through the same hole. At 300 bar, the H&N pellets averaged 612 fps (5 shots); at 200 bar the average was 595; at 100 bar 569. The drop is very linear. In 10 shot test groups with the three pellets mentioned the greatest difference between min and max was 11 fps; standard deviation was consistently 2 fps for each type. This is what you get with a regulated PCP! By the way, using a 9x scope to fine tune your 10 Meter off hand technique is an excellent way to go. You get a lot of feedback on your technique that is just not available to the naked eye. The dovetail rail goes the whole length of the barrel on this gun so you can put that scope anywhere you want.


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  • Wayde from USA asked:

    Can you recommend a moderately priced scope and mounts for Shooting from a benchrest ? Thanks

  • Dennis from USA asked:

    what adapter do I need for the air tank? i already have a set up for the marauder? what .177 pellets do you recommend? grain weight and maker.

    • Val from USA:

      Use the PCP Hookup tab to see adapters (if any) are needed. Use the pellets recommended below. Generally H&N Finale Match is used in Olympic Competitions, others will work OK as well.

To fill your PCP gun:
1.Pick a source of air shown at right
2.If an adapter is needed, one will be shown
3.Add both to your cart to get hooked up

Hammerli AR20 Pro Air Rifle, Hot Red with DIN connector (5M)

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Airgun Academy Episode 38 - PCP Filling Systems

Item Description

HA-46610012 [PY-3230-6876]
10-meter and 3-position PCP rifle, highly adjustable, ambidextrous
Caliber.177" (4.5mm)
Max Velocity557 fps

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