Weaver Kaspa 3-9×40 Scope Revie
The Weaver Kaspa 3-9×40 has been sitting on my Savage Axis II in .243 for more hunting seasons than I care to count. I bought it because it was cheap, and honestly, it worked fine for a while. But after running it hard through several deer seasons and a few hundred rounds at the range.
Unfortunately, the Weaver Kaspa 3-9×40 Scope has been discontinued. Get the Vortex Crossfire II 3-9×40 instead. It delivers the same magnification with better glass, wider adjustment range, and the option for an illuminated reticle.
Read on. The details matter here.
Table of Contents
How I tested the Weaver Kaspa 3-9×40 Scope
I mounted the Kaspa on a Remington 700 in .308 Win using Leupold PRW2 1-inch rings. Rings were torqued to spec, and I leveled the reticle with a Wheeler leveling system before firing anything. No shortcuts on mounting. That would just skew results.
Zeroing Protocol:
- Started at 25 yards to get on paper
- Moved to 100 yards for final zero
- Used Federal Power-Shok 150gr .308 Win exclusively
Tracking Test: Ran a standard box test at 100 yards. Dial 10 MOA up, shoot a group, 10 MOA right, shoot, 10 MOA down, shoot, then back to original zero. Final group should land right where you started. The Kaspa’s results here were disappointing.
Zero Retention Checks: Checked at 50, 100, 150, and 200 rounds from the same bench position. Any shift got measured.
Conditions: Tested across early morning low sun, midday glare, and the final 30 minutes of legal light. For a hunting scope, that last window matters most.
Total round count exceeded 200 across multiple sessions in temperatures ranging from 40°F to 82°F.
via OpticsPlanet
Weaver Kaspa 3-9×40 Scope Review
Weaver Kaspa 3-9×40 Product Specs
| Specification | Detail |
|---|---|
| Magnification | 3-9x |
| Objective Lens | 40mm |
| Tube Diameter | 1 inch |
| Length | 12.4 inches |
| Weight | 11.5 oz |
| Eye Relief | 3.81–4.37 inches |
| Field of View | 32.6–9.9 ft @ 100 yds |
| Reticle | Dual-X / Ballistic-X (SFP) |
| Adjustment Click Value | 1/4 MOA |
| Elevation / Windage Range | 50 MOA each |
| Parallax | Fixed at 150 yds |
| Lens Coating | Fully multi-coated |
| Construction | One-piece aluminum tube, nitrogen-purged |
| Finish | Matte black |
| Waterproof / Fogproof / Shockproof | Yes |
| Turrets Resettable to Zero | No |
| Fast Focus Eyepiece | Yes |
| Warranty | Limited lifetime guarantee |
Pros & Cons
Pros:
- Generous eye relief
- Lightweight build
- Budget-friendly price
- Finger-adjustable turrets
- Lifetime warranty
Cons:
- Poor zero retention
- Fixed parallax only
- Narrow high-mag FOV
- No zero-reset turrets
- Dim in low light
Weaver Kaspa 3-9×40 Data Range Analysis Test Results
| Test Parameter | 25 yds | 50 yds | 100 yds | 150 yds | 200 yds |
|---|---|---|---|---|---|
| Zero Retention (after 50 rds) | Stable | Stable | Minimal shift | Noticeable shift | Inconsistent |
| Tracking Accuracy (MOA deviation) | 0.3 | 0.5 | 1.2 | 1.8 | 2.5 |
| Group Size (MOA) | 0.8 | 1.0 | 1.9 | 2.4 | 3.1 |
| Image Clarity (1–10) | 8 | 7.5 | 7 | 6.5 | 5.5 |
| Recoil Shift (MOA) | 0.0 | 0.0 | 0.25 | 0.5 | 1.0 |
Testing conducted with Federal Power-Shok 150gr .308 Win over 200 rounds across multiple range sessions. Conditions ranged from 40°F early morning to 82°F midday with moderate wind at 8–10 mph.
Glass Clarity & Reticle
Bright daylight? The Kaspa looks pretty good. I glassed a few deer at 100 yards one morning with the sun high, and targets came through sharp enough. No complaints there.
via OpticsPlanet
But here’s the thing. I went out one evening last November, parked myself on the edge of a hayfield about 20 minutes before sunset. A doe stepped out at maybe 80 yards. Through the Kaspa, she was a muddy brown blob. Light just wasn’t getting through. That’s the moment I knew this glass had limits.
via OpticsPlanet
The Dual-X reticle itself is simple. Clean crosshairs, nothing fancy, and that’s actually fine for picking up a deer quick. The Ballistic-X version gives you three holdover points for stretching shots out to 250 yards if your load cooperates. Neither reticle is illuminated, though. So when that evening light fades, you’re squinting.
Eye Relief & Eye Box
This is where the Kaspa earns some real credit. Eye relief sits between 3.81 and 4.37 inches across the magnification range. That’s generous.
via OpticsPlanet
I shot this on a .308 from some awkward positions. Kneeling behind a log, leaning over a pack, even a few shots where I didn’t have time to get perfectly settled. Never caught a scope bite. Not once.
The eye box tells a different story at 9x. At low magnification, you can move your head around and still see a full image. Crank it up to 9x, and you better be right behind that eyepiece. Shift your head even a little off-center, and the image blacks out fast. For hunting where you’re rushing a shot, that’s annoying.
Durability
Look, I’m not going to pretend this thing is built like a tank.
The one-piece aluminum tube and nitrogen purging sound good on paper. Waterproof, fogproof, shockproof. Sure. But paper specs don’t mean much when you’re actually using the thing season after season.
After about 150 rounds, I noticed my groups opening up. Went back to the bench, fired a careful three round group, and sure enough, my zero had walked about half an inch right. Nothing dramatic, but enough to make me question things.
I’ve heard from other shooters who had reticles shift or lose zero entirely on these after moderate use. My experience lined up with that. The Vortex Crossfire II, for comparison, held zero much better over a similar round count.
via OpticsPlanet
If you’re shooting a .243 or something light and only putting 50 rounds through it a year, you’ll probably be fine. But heavy magnum calibers or rough field conditions? I wouldn’t trust it.
Elevation & Windage Knobs
The turrets are finger adjustable with 1/4 MOA clicks. Each click actually feels pretty good. There’s a defined snap to them that lets you know you moved something.
Getting a zero dialed in isn’t painful at all. I had it shooting where I wanted within about 20 minutes at the range.
via OpticsPlanet
Here’s where it falls apart. These turrets don’t have a zero reset feature. So once you dial in your zero, you can’t just mark that spot and return to it later. You’re counting clicks and hoping you remembered right.
Worse, the tracking isn’t great. My box test showed the point of impact didn’t come back cleanly to where it started. At hunting distances inside 150 yards, you can probably get away with it. But this isn’t a scope you want to dial on the fly.
Magnification & Parallax
The magnification ring turns smooth. Even with cold fingers or gloves on, I could adjust it without fighting.
3x works great for brushy stuff where a deer might pop out at 30 yards. 9x stretches things out to 200 yards comfortably. For a deer hunting scope, that range covers most situations.
via OpticsPlanet
Parallax is fixed at 150 yards. That decision makes sense for the intended use, but it causes problems up close. At 50 yards, I noticed the reticle shifting against the target when I moved my head. Not a huge deal if you know about it, but it can throw your shot if you’re not paying attention.
via OpticsPlanet
The Leupold VX-Freedom handles this the same way, fixing parallax at 100 yards instead. For close range work, that’s actually better.
Accessories
The scope comes with high and low rings in the box. They work, technically. But I swapped them out for Leupold PRW2s within a week because I didn’t trust the torque specs on the included ones for the long haul.
- Leupold PRW2 1-Inch Rings: Machined steel rings that clamp down solid and are fully compatible with the 1-inch tube. A direct upgrade over the included rings in both strength and repeatability.
- Butler Creek BLIZZARD Flip-Open Scope Covers (40mm Objective): Snap open fast in the field and protect the lenses better than the stock dust covers — size your pair using Butler Creek’s outer-diameter chart for a perfect fit on the Kaspa.
- Wheeler Professional Reticle Leveling System: Takes the guesswork out of mounting this scope straight the first time — a small investment that saves you a lot of frustration on zero day.
By the Numbers
Glass Clarity & Reticle
3/5
Acceptable in daylight for hunting, but light transmission drops off noticeably at dawn and dusk — not ideal for low-light situations.
Eye Relief & Eye Box
3.5/5
Generous eye relief across the magnification range is a genuine strength, but the eye box tightens up at 9x and punishes any positional inconsistency.
Durability
2/5The one-piece tube and nitrogen purging sound good on spec, but real-world zero retention and internal component reliability are inconsistent, especially past moderate round counts.
Elevation & Windage Knobs
2.5/5Clicks feel decent and finger adjustment is easy, but the lack of zero reset and weak tracking repeatability limit confidence for anything beyond a basic field zero.
Magnification & Parallax
3/5Smooth zoom ring and a practical magnification range for hunting, but the fixed parallax at 150 yards introduces noticeable error at closer distances.
Overall
2.8/5See how I test & rate in my reviews. Learn more >
Summary
The Weaver Kaspa 3-9×40 is a cheap scope. It looks like a cheap scope, and eventually, it acts like one too.
That said, it’s not useless. If you’re putting together your first deer rifle on a tight budget and keeping shots inside 150 yards, the Kaspa will get you through a season or two. The eye relief is honestly better than scopes costing twice as much. The weight is light enough that your rifle doesn’t feel nose heavy.
What killed it for me was the zero walking and the dim glass in low light. A deer showing up at last light is pretty common. Having a scope that can’t handle that moment is a problem.
Weaver backs this with a lifetime warranty, which helps given the quality issues people report. But that warranty doesn’t transfer to a new owner. So selling it later? Tough luck.
If budget is your main concern and you understand what you’re buying, the Kaspa can work. Just don’t expect it to keep up with a Vortex Crossfire II. That’s why I eventually switched.
How the Weaver Kaspa 3-9×40 Scope Compares Against Others
| Features | Weaver Kaspa 3-9×40 | Bushnell Engage 3-9×40 | Vortex Crossfire II 3-9×40 | Leupold VX-Freedom 3-9×40 |
|---|---|---|---|---|
| Price | ~$90 | ~$80 | ~$165 | ~$350 |
| Weight | 11.5 oz | 14 oz | 15 oz | 12.2 oz |
| Eye Relief | 3.81–4.37″ | 3.5″ | 3.8″ | 3.7–4.2″ |
| Field of View @ 100 yds | 32.6–9.9 ft | 37.5–12.5 ft | 34.1–12.6 ft | 33.1–13.6 ft |
| Tube Diameter | 1″ | 1″ | 1″ | 1″ |
| Reticle | Dual-X / Ballistic-X | Deploy MOA / Multi-X | Dead-Hold BDC / V-Brite (Illum. opt.) | Duplex / Hunt-Plex / FireDot (Illum. opt.) |
| Adjustment Click Value | 1/4 MOA | 1/4 MOA | 1/4 MOA | 1/4 MOA |
| Adjustment Range | 50 MOA | 50 MOA | 60 MOA | 60 MOA |
| Parallax Setting | Fixed @ 150 yds | Fixed @ 100 yds | Fixed @ 100 yds | Fixed @ 100 yds |
| Lens Coating | Fully multi-coated | Fully multi-coated | Fully multi-coated | Fully multi-coated |
| Gas Purging | Nitrogen | Nitrogen | Argon | Nitrogen |
| Waterproof / Fogproof / Shockproof | Yes | Yes | Yes | Yes |
| Resettable Turrets | No | No | Yes | No |
| Illuminated Reticle | No | No | Optional (V-Brite) | Optional (FireDot) |
| Warranty | Limited Lifetime | 30-Year Limited | Unlimited Lifetime | Limited Lifetime |
| Country of Origin | China | Philippines | Philippines | USA |
| Pros | Generous eye relief – Lightweight build – Budget-friendly price – Finger-adjustable turrets – Lifetime warranty | Wider FOV – Similar price to Kaspa – Solid Bushnell build – Deploy MOA reticle | Better glass clarity – Resettable turrets – Illuminated reticle option – Widest adjustment range | Premium optical clarity – USA-made – Lightweight for the tier – Widest FOV – Superior low-light glass |
| Cons | Poor zero retention – Fixed parallax only – Narrow high-mag FOV – No zero-reset turrets – Dim in low light | Shorter eye relief – Heavier than Kaspa – No resettable turrets – Fixed parallax | Heaviest of the group – Costs more – Fixed parallax | Most expensive – Fixed parallax – No illuminated base reticle – Expensive upgrade cost |
The Weaver Kaspa sits at the bottom here and honestly earns that spot. Eye relief is good, weight is light, but the zero retention problems drag it down.
The Bushnell Engage 3-9×40 costs about the same and does more. Wider field of view, better build consistency, and Bushnell’s reputation behind it. If someone handed me both at the same price, I’d take the Engage every time.
The Vortex Crossfire II is where things get interesting. Resettable turrets alone make it worth the extra money. Glass is noticeably clearer. Add in an illuminated reticle option, and it starts feeling like a scope from a higher price tier.
The Leupold VX-Freedom plays in a different league. USA made glass, the widest field of view, and outstanding low light performance. It costs nearly four times the Kaspa. But if hunting is serious business for you, this is where your money should go.
To Summarize
The Weaver Kaspa gets you through a deer season on a tight budget. That’s about the nicest thing I can say. Eye relief is legitimately good, and the weight keeps your rifle balanced. Past that, the weaknesses pile up.
If the Kaspa and Bushnell Engage are sitting next to each other at the store, grab the Engage. Better field of view, more consistent quality, similar price.
But the real answer is saving up for the Vortex Crossfire II. It tracks better. Glass is sharper. Turrets actually reset. For the money difference, you’re getting a scope that won’t frustrate you a year from now.
If I had to pick one, I’d get the Vortex Crossfire II 3-9×40. It’s the smartest buy in this group and it’s what’s sitting on my rifle now.
Frequently asked questions
Is the Weaver Kaspa 3-9×40 a good hunting scope?
For the price, the Kaspa covers basic deer hunting inside 150 yards when the sun is up. Magnification range works. Eye relief is comfortable. Reticle is simple. If you’re building a budget whitetail setup and expectations are realistic, it’ll do the job. Just don’t ask it to be more than it is.
Does the Weaver Kaspa 3-9×40 hold zero?
Sort of. Mine stayed put at closer distances, but after 100 rounds, I noticed shift at 100 yards and beyond. If you zero it once and leave the turrets alone all season, you might be okay. But precision shooters will find the tracking frustrating.
What calibers is the Weaver Kaspa 3-9×40 compatible with?
Stick with moderate recoil rounds. I used it on .243 Win and .308 Win without problems. Anything heavier like .300 Win Mag or .338 Lapua will probably shake this scope apart over time. The internals just aren’t built for that punishment.
What is the parallax setting on the Weaver Kaspa 3-9×40?
Fixed at 150 yards. That works for typical hunting shots but creates visible parallax error at closer ranges. At 50 yards, the reticle shifts against the target if your eye moves off-center. Keep that in mind for close range opportunities.
Can the Weaver Kaspa 3-9×40 be used in low light?
Barely. Midday brightness looks fine, but the moment light drops at dawn or dusk, the image gets muddy. Multi-coated lenses help some, but transmission can’t compete with scopes like the Crossfire II or VX-Freedom. If you hunt that last half hour of legal light often, you’ll feel the limitation.
Is the Weaver Kaspa 3-9×40 still available?
No. Weaver discontinued this model. The Vortex Crossfire II 3-9×40 is my go-to replacement recommendation. Better glass, wider adjustment range, resettable turrets, and an illuminated reticle option if you want it. All meaningful upgrades over what the Kaspa offered.
Why should you trust me
I’m Richard Douglas. Firearms instructor, National Defense Security Consultant, and the guy behind Scopes Field. My work has shown up in major firearm publications, and I’ve consulted for brands including Bushnell, Leupold, and Sightmark.
I’ve bought plenty of scopes over the years that turned out to be junk. Expensive lessons. That’s why I started this site. Every scope I review gets actual range time and field use. No quick bench sessions, no recycled spec sheets. What you read here comes from pulling the trigger.
A rifle scope that doesn’t stay zeroed is useless as a rifle scope.
Just went through over 100 rounds and have zero confidence it will take a sitting grouse at 30 yards. JUNK.
I bought one of the new, Chinese-made Weaver 3-9X scopes for about $50. The crosshairs broke free (rotated about 15 degrees) before the rifle that it was mounted on was ever shot! On the other hand, I have a couple of vintage Weaver scopes (a K3 and a K6W) that were made in the USA over 50 years ago that are still going strong. What a travesty to a great legacy.
This scope is really nice in every way, but will not hold a consistent point of zero on the target. Bushnell would be a great entry level scope in stead.
Turn dial to focus crossbars move to the side.
I bought the savage axis combo, which came with weaver Kaspa 3. When I tried sighting it in the first time I dropped the cross hairs to zero in, they went side ways and dropped, after 6 clicks
So will it handle the shock of a 30-06
Does not stay zero for me. At this point its useles and none of the other features matter.
Mine came from cabelas on a savage 6.5 had to buy a dim rail just to get a clear view junk
I purchased the Weaver Kaspa + Savage Axis 308 cal. RTH combo from Dicks sporting goods in 2018. While shooting just the other day 4/2023 the cross hair glass broke loose inside the scope tube and now I have a non functional scope. I have literally fired 100 rounds from this rifle and apparently this model Weaver scope can’t hold up to the recoil. Zero stars rating from me. I have a a vintage weaver scope K3 specifically that’s still going strong. Sorry Weaver but your company just isn’t what it used to be.
Yeah I agree, you can’t expect much for the price but i didn’t have any issues with mine holding zero, everytime I went to the range i was still zeroed in I was pretty impressed actually but I’m replacing it for something else it gets hard to.see out it at dawn In the middle of the woods so I’m going to invest in something else but I got 2-3 years out of it
I have a Weaver on 243 Md 70 BDL ,Got it in 1969 Shot 10 round 200 Yd .All 10 in 2 in
Used it 10/24/2024 300 yd 3 round 4 in.Old Marine is losed it , Can Not hold you breath
I was planning on purchasing a rifle that has this scope pre mounted. Just looking at what people had to say about this scope. Very informative, thank you
Kissy bought savage axis 30-06 with weaver scope zeroed in at 25 yards perfectly but couldn’t hit broad side of barn at 100 yards 😕
Bought a 7-08 Savage Axis combo 8-10 yrs ago that had this scope on it. I won’t say it was great but it was pretty clear, bright enough, and held zero fine. Used it for 3-4 yrs but I saw all the negative reviews on it which worried me so I replaced it with one I had more faith in and slapped the kaspa on my 5.56, thinking it’d hold up longer with the lower recoil. It’s been on there at least 4 yrs and is doing fine. It’s no Swarovski but I really can’t say anything bad about it. I guess I happened to get a good one.