Date: 5/12/2020 10:36
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SIG Sauer ASP20 Gas-Piston Breakbarrel Air Rifle Combo Beech

4.04 reviewsReview, article, latest buzz
SIG Sauer ASP20

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SIG Sauer ASP20 Gas-Piston Breakbarrel Air Rifle Combo, Beech Stock

  • Gas-Piston
  • Breakbarrel
  • Weaver/Picatinny Rail
  • Black Stained Beech Stock
  • Integrated Suppressor
  • 2-Stage Adjustable MatchLite® Trigger, 2.5-4 lbs trigger pull
  • GlideLite™ Cocking Mechanism
  • Wedge Lock Breech System eliminates barrel droop


SIG Sauer Whiskey3 Scope

  • Designed Specifically for ASP Rifles
  • 4-12x magnification
  • 44mm objective
  • 1/4  MOA Milling Reticle
  • 3x optical zoom
  • Low dispersion (LD) glass provides industry-leading optical clarity for any situation
  • European style eyepiece for a smooth, fast, and precise reticle adjustment
  • Dependable waterproof (IPX-7 rated for complete immersion up to 1 meter) and fog-proof performance
  • Compatible with ALPHA1 1" High Mounts

SIG Sauer breaks into the breakbarrel airgun market with the US-made ASP20 Break Barrel Rifle, a suppressed single-shot, gas piston rifle ideal for backyard target shooting and taking down small game.

Available in .177 and .22 the ASP20 uses a gas piston powerplant that is specially calibrated to deliver its pellets downrange at optimal speeds for accuracy and energy.  The added benefit of this powerplant is the ability to shoot in colder weather without sacrificing power as you would with a spring-piston.  Each uses a Glidelite Cocking Mechanism to ensure that your cocking effort is a smooth and manageable 33 lbs.  In the .177 caliber, the ASP20 slings pellets at 1021 fps, and at 841 in .22 to dump 20 to 23 FPE into your targets.  This design is based on the notion that subsonic pellets will fire more accurately, a maxim that proves true time and time again among premium airguns.  Built for quiet backyard shooting, those powerful shots are all moderated by an integrated suppressor.   

Moving to the action, the ASP20 features an adjustable 2-stage Matchlite® Trigger, designed for smooth and consistent trigger pulls to aid in accurate shot placement. A proprietary drill-pinned Breech Wedge Lock System also aids in improved accuracy by perfectly lining up the action with the barrel.  A long Weaver/Picatinny rail awaits your choice of optics, and all of these features are set into an ergonomic black stained beech stock with excellent checkering on the grip and forend.  

All of these options culminate in a superior gas-piston breakbarrel air rifle that lives up to SIG’s legacy of crafting airguns with improved tech, quality build, and are a thrill to shoot.  

See manual

other products by SIG Sauer

Caliber.177" (4.5mm)
Max Velocity1021 fpsMeasured with 8.64 ammo
Muzzle Energy20 ft/lbs
Barrel Length13.8"
Overall Length45.6"
Shot Capacity1
Cocking Effort33 lbs
Front Sightnone
Rear Sightnone
TriggerTwo-stage adjustable
Suggested forSmall game hunting/target practice
Trigger Pull2.5 lbs
ActionBreak barrel
Body TypeRifle
Fixed/adj. powerFixed
Weight9.5 lbs
See manual

other products by SIG Sauer

Average Customer Review

4.0 (4 reviews)
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4.0 4.0

4.0 4.0

4.0 4.0

By Alan on 2020-09-12
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Things I liked: The ASP20 is well built and should last for many years. The Whiskey3 scope is made in the Philippines (poor quality) and does not hold up to the recoil. Accuracy is not as good as many people claim. Using a Hawke Airmax scope, one piece rings, and high end pellets you will achieve 8 out 10 shots in a 1 inch circle at 30 yards, 5 out 10 at 40 yards, 3 out of 10 at 50 yards. You will have almost $700 in this set up! Is that accuracy worth $700? You decide.

Things I would have changed: Replace the Whiskey3 scope and Sig Sauer rings with better quality components. Add open sights so you can shoot your $600(total cost) rifle while waiting for your scope to be repaired.

What others should know: The accuracy that you see on YouTube is a fantasy world. Ever notice that they are not using the Whiskey3 scope? Any pellets over 10 grns are super tight and cannot be seated by hand. Anything under 10 grns is inaccurate.


5.0 5.0

5.0 5.0

5.0 5.0

By James from USA on 2020-08-19
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Things I liked: First I need to say that I am a total newbie to airgunning, I mean this 57 year old hasn't touched a gun since I was shooting my brother's Daisy BB gun when I was 12... The squawking bird outside my window keeping me up at 2am a while back got me thinking about how dispatching that stupid thing with a pellet gun would make me feel more like a man so I started my quest to learn about today's pellet gun offerings. The internet and Pyramyd Air were a huge help in moving my thinking past a $79 multi-pump gun to the point that I took the plunge and bought a well reviewed Umarex Forge .177 model (I'll probably post a review under that product later.) It is a good unit and I learned a lot using it this past couple months. Mostly what it did was get me totally hooked on this air gun thing, I mean the airgunning bug has hit me harder than any Covid-19 bug could ever dream of! This clever little bug has been spinning around in my brain making me think (continued in next field)

Things I would have changed: "If this lower cost springer is working ok for me, what would it be like to shoot a REALLY good model, one with a great trigger, more power and even better accuracy?" So having then NO control over the situation (dam this airgunning bug) I was forced to do more research and scan reviews which lead me to the Sig Sauer ASP20... I pulled the trigger, a bit fearful that spending $600 was too much money for a guy trying to save for retirement so he'll finally have more time to play with his airguns. So you want a review? Here's what I think about the ASP20... HOLY COW this is a great riffle!! This thing is awesome! Remember I said I'm a newbie, I don't believe I actually shoot very well as I'm learning and working on good technique for holding, sighting, breathing, trigger pull, you long time shooters have mastered all that right? Anyway, I had this gun dialed in using its included Whiskey 3 scope in about 15 minutes, seriously, in my basement at 15 yards (continued in next field)

What others should know: I am getting 1/4 to 1/2 inch groups consistently. You might say that's easy at 15 yards but not for me. This gun is a joy to shoot. Trigger pull surprised me at first because it was so much easier than my Umarex, I quickly could tell right where the break point was. It is a beautiful looking gun with great fit and finish. Everything I read about how well the barrel comes back to the breech, the "wedge lock breech system," is totally true - some great engineering there. It has some kick but it's not excessive. Some reviewers said it's a bit heavy, the heft, I believe, aids in how smoothly it shoots. Overall, for me, this is a 5-star piece, one I'm going to love for a long time. I can't wait to finish the shooting bench I am building and getting out to the back yard to start practicing at 20, 35 and 50 yds! If you're thinking about getting a springer and you have the dollars to spend, get the ASP20, you will not be sorry. Now, which PCP should I look into? (Dam this airgunning bug!!)


5.0 5.0

4.0 4.0

5.0 5.0

By Randy from USA on 2020-01-10
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Things I liked: The rifle is extremely well built. Easy to shoot. Kinda heavy but feels good in your hands. The scope is awesome I would like get one for my .22 rim fire. Right off the bat I was grouping smaller than a dime at 30 yards.

Things I would have changed: It needs cammo

What others should know: The very first shot was at 30 yards and hit perfectly dead center on the target. No scope adjustment! Every thing must have been machined to a perfect fit. Yes Ive got a winner


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  • Brian from USA asked:

    It shows this listed as 177 and 22 but only gives the option to purchase in 177. How do I get this model With a scope in 22?

    • Mark from USA:

      The ASP20 is only available in .177 cal.

  • Maurice from USA asked:

    07-05-2020: Can this SIG Sauer ASP20 rifle be decocked?

    • Mark from USA:


  • Jeff from USA asked:

    Does the scope in this combo have the ballistically matched and marked elevation turret? The one Tom G. wrote about in his review?

    See all discussions

    Item Description
    SIG-AIR-ASP20-1711PK [PY-4749-9425]

    Sig Sauer ASP20 Gas-Piston Breakbarrel Air Rifle Combo, Beech Stock .177 (AIR-ASP20-1711SC)

    • SIG Sauer ASP20 Gas-Piston Breakbarrel .177-cal Air Rifle
    • Ambidextrous beech wood stock
    • SIG Sauer Whiskey3 scope & mounts
    • Owner's manual

    Caliber.177" (4.5mm)
    Max Velocity1021 fpsMeasured with 8.64 ammo
    Muzzle Energy20 ft/lbs

    This item is not eligible for coupon discounts